Depends on where you live, certain places do not have capital gains tax which wouldn't eat into your profits.

If you never sell your Bitcoins or otherwise actively use it, then there is little purpose for Bitcoin's existence. Not everyone should be trying to loan out their Bitcoins, oversaturating the market that way wouldn't be beneficial either and incurs opportunity costs for your Bitcoins as well.

I don't see the point of HODLing it. If everyone adopts that mindset, then Bitcoin simply wouldn't grow in the long term. How can you justify it as a currency if the value arises from its potential to supplement or otherwise replace the financial systems?

There are a lot of different people who are entering or buying Bitcoin with different goals.
Some of them don't know what really the use of Bitcoin, some of them are buying because they thought it could generate them easy money, some of them are for investment like mid term/short term or long term.
And some of the people buying Bitcoin got a trader mindset, that 'HODL' term not true for them, they only for profits. Very difficult to force some people to never sell their Bitcoin.

many people spend their money to buy bitcoin with the aim of making a profit in the short term they don't think bitcoin is for the future, but only people who know the future profit is bigger they will hold bitcoin in the long term.

+1

This reminds me of a thing I often hear (especially from non-bitcoiners) in regard to those early adopters who spent  crazy amounts of BTC, like "look at that idiot pizza guy, if he saved those 10,000 BTC he would be millionaire now" not realizing that if those early adopters decided to just passively hold instead buying something and showing that bitcoin is money, we wouldn't be where we are now.

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Regarding OP question, I spend BTC on the regular basis. Sometimes directly, sometimes via crypto debit card, but I do use it.

With your title, you are subconsciously priming people to say that they shouldn't sell so that means that the general consensus will eventually favor not selling their bitcoin If you can gain a really big profit margin, you might as well sell it all because you can just sell it back when the prices go down again, nothin wrong with getting profits out of hodling.

This statement depends on the financial condition of the holder, you can’t say one should not sell bitcoin when in dear need of money to settle urgent financial needs. It’s advisable to hold your bitcoin when you have other alternative means of settling your financial need.

We hold Bitcoin for a variety of reasons but there would always come a time where you would inevitably sell it tbh, since it's pretty much the use of it. It's a currency, not some type of rare item or whatnot that can act as an heirloom for your family. Sure, hold it long enough maybe so that you can get your investment and probably more back, but holding it forever? Nah. HODLers are in the end, still a type of investor and would still pretty much sell it back to gain profit. Even if it wasn't for investment, again, it is a currency, it's meant to be spent.

The word "never" confuses me. If there is a reason to spend, then I will spend. For what purpose are you starting to invest? To make a profit. Do you have an idea where you will spend your profits? If there is no idea and purpose, there will be no point in holding the cryptocurrency. Moreover, all these calls to keep bitcoins like the apple of your eye, and never spend them, are inappropriate for some segments of the population.
Those who need finances should not deprive themselves of anything. A person has one life. And many people are waiting for profit and wealth later. And sometimes this "later" may not happen.

Not just Saylor; almost anyone you ask, you'll get a similar response. And that is completely justified. We're living an epoch where Bitcoin isn't globally adopted yet and therefore, if you hold your coins, you'll most likely be richer in the future. The demanding will rise and so will the exchange rate of BTC/USD. Not to mention that comparing a long-term deflationary currency with an (soon hyper)inflated one will result in increase of its exchange rate.

I see Bitcoin as a safe haven in the long term, just as gold. It'd have the lowest risk to hold it in contrast with other cryptocurrencies. Just to mention that Bitcoin has a $650B market cap and gold $10T. Judge this and act however you believe it'll end up in the late 20s.

There will always be people willing to spend their BTC. Holding relies on that fact, including that it'll be globally adopted in the future.

Exactly, but there's an exception to this rule and that's the short-term people and the traders, might as well do a stop loss when the prices are going down and just go back to it when the prices are much lower and wait for it to go back up again.