The community seemed lite in rocket scientists at the time I got involved and time has certainly not changed the situation for the better.

Of course 'better' means different things to different people.  If Mike Hearn (of all people!) pulls off a coup and assumes the newly created position of 'benevolent dictator of Bitcoin', he and others of his ilk could legitimately consider the makeup of the community 'better.'

A few years ago, only internet geek's and nerd's seemed to know about Bitcoin. {We had a party at my house in 2011 and someone there.. A huge nerd, mentioned something about Bitcoin and Bitcoin mining... Most people there laughed at him, but I took notice... I waited until he went for a smoke outside, and I started to talk to him... We spoke for 3 hours, and those guys who laughed at him, passed out.}

Today that nerd is the one doing the laughing... He has bitcoins all over the show, and we became good friends. The people who laughed at him, is buying Bitcoins from him now. 

I can kick myself, because I did not seriously invest into Bitcoin after our first discussion... I only got into it later, when the price got much higher.

Some of the people coming into Bitcoin now, are of the kind, who laughed at the nerd. They have no technical interest, and are only invested for the possible "riches" that might come with the next price boom. {Are they dumb.... Nah.. some are smart... they are just here for the profit and the money}   

i would say that the community is more greedy now than ever, and more scammer each day are raising, in this greediness

everyone here is for fiat and not for bitcoin itself, they find this the best place for a quick buck

Smarter. First there were only smart geeks mostly, then normal people that often enough got rich. Then the scams started when scammers found there is some item of value that you can steel unfound. So they thought at least.

Bitcoiners were very inexperienced about how to handle those magic internet money that somehow was worth something now. And since they were inexperienced, they had to learn it the hard way.

Now these guys are smarter.

There are still new users coming in but they get warnings from old ones. Scams didnt stop completely since there are always newbies that dont know much yet and werent educated. And there are a lot of scammers that try to do anything to scam now.

So in total i think bitcoiners learnt VERY MUCH.

Faster, slower? Dont know. Knowledge makes it possible to decide faster but generally?

Wealthier... i think wealth is spread. Many lost much or all... or even more. Some are still very rich. But its possible to get rich still, with the correct idea.

At the moment optimistic longterm and slightly optimistic short term.

Fatter? When i read how many fans use bitcoins to order fastfood i would say fatter... only thing is, every bitcoiner i met is rather thin or normal. Didnt meet a fat person. And i think that comes from mindset too. You dont try to explore something like that without the wish to change your life.

Yes, it matters. Bitcoin needs to get a better look to outsiders. Scams wont help there.

BTC community is smarter of course, because they learned a lot from others here and also from their own experience   There are also a lot of new members too