Not really. In this forum probably if you find people who have these misconceptions it is because they are newbies. The tackle them thing I would leave it alone. There are people who when the price of Bitcoin was under $100 said it was going to go to 0 and they are still saying it. Don't tell people there is a gold mine, you better grab a pick and shovel.

One common misconception that I have heard often from my friend circle is how lucky I am to own bitcoin and how they will never have enough money to invest in and buy one whole bitcoin. It amazes me every time, regardless of how often I explain it to them that bitcoin is divisible enough, making it possible that you buy $1 worth of it if you want. To that they say that it would look silly if they owned only 0.00001 BTC or something like that. Sadly, there is no helping some people.

Misconceptions in Bitcoin space starts and ends with newbies and market manipulators, Bitcoin is the most simplest digital asset to understand, all you have to do is your own assignments, with access to the internet you will understand Bitcoin in no time but if you are a lazy type you will believe the nonsense that people who don't understand bitcoin are saying.

Don't be stupid enough to believe what anyone say, do your own research.
With Bitcoin, seeing should be believing, DYOR.

I've heard a lot from many people who don't believe in what Bitcoin is offering the world, I choose to believe in myself and today these same people are now learning about Bitcoin, if I have listened to them years ago I would have missed out a lot.

I totally agree with all you said here, because it's mostly those that have no knowledge of Bitcoin and all it entails that mostly thinks that way, and saying so because I have been in such space before, when I was totally misinformed about Bitcoin and how it works, I stayed away from it completely because I initially thought that it was one of the new ponzi scheme out there after MMM, because in my country, during that time that MMM went away with people hard earned money, that was when I heard of Bitcoin, I thought that is one of this Ponzi scheme  just as MMM, because that's what almost everyone sees it as at then, but with time, I  started getting the right information about Bitcoin and I started feeling regret that I missed the opportunity to acquire it when it was a lot cheaper, so in essence of what am trying to say is that, it's most newbies or completely novice just as you rightfully said  wether in this forum or not that takes Bitcoin as such, base on what they were told.

You don't even get serious upon hearing that from someone who isn't knowledgeable about Bitcoin after saying that it's controlled by a single entity. Bitcoin is decentralized and that's why there is no central authority that is controlling and can control it. It's no doubt that whoever has the most holdings of Bitcoin can manipulate a bit the market but soon, it will stabilize on its own. And for the miners, the hash power of it is said to be that whoever has it can also control the network. But how are and are they controlling it? it's even the opposite that many quit mining because they can't handle the difficulty of hash rate anymore. I'd say that one misconception about Bitcoin is that it will make someone rich overnight. 

The categories of people that hold the bolk of misconception about Bitcoin are newbies, Bitcoin skeptics, anti Bitcoin folks and those that have been victim of ponzi schemes. All these set of people can be classified as a combination of ignorant people and haters.  It's deficult for someone that has been in the Bitcoin system to still hold on to such claim that Bitcoin is being controlled by a single entity. If that's true then I would be very much interested to know who those entities are.

One major misconception a lot of people though mostly newbies still don't want to let go of is this get rich quick thought that they attribute to Bitcoin which makes them think that holding Bitcoin for a long period of time will automatically translates to them becoming rich. It's a strange and false concept but I guess that's what being a newbie allows you to. You get to assume so many things and get a lot of narrative wrong but with time you eventually come to terms with what's really true and that's when you've actually grown enough as a full blown Bitcoinner.

I would answer with an expression that is now very active on the Internet, although it hardly belongs to a famous writer:
"Never argue with idiots. You will sink to their level, where they will crush you with their experience" If someone misinterprets the usefulness of Bitcoin, that is his right; let him. I will not get involved in an argument; moreover, I have nothing to talk about with such "deeply assertive smart guys."  Time will put everything in their heads in place. The problem is actually on their side; while smart people buy, other "smart people" waste time.

I know him. He can't handle if you ask if you ask him to get a string on his ugly bastard dog. What he can handle is to drive you down to his level with absolute nonsense.

You avoid him and his stupid dog. You can't help them.

That means they don't really understand bitcoin and what they see is just a grapevine from some news, especially for conspiracy-like information that makes them believe even though they don't understand what they are actually saying.
Things like this are still a situation that exists among ordinary people about bitcoin especially if they know bitcoin and only aim to bring down bitcoin then it is clear that this will always be rumored so I think sometimes we don't need to take care of this kind of thing because in the end it will only keep you busy yourself with debates that don't even have any benefit.

In addition, they also don't want to find out more about the truth so when we provide facts that contradict the claims they think are true, it won't be useful because they won't accept the facts.