Centralization in the crypto space is not totally a bad idea as some fully decentralized projects have not lived upto their centralized peers. A good example is binance ~
you can't generalize this with only an exchange example.
centralization is not a bad thing but centralization of what? you said projects, is it the altcoin projects? i agree it is not a bad thing to even have a fully centralized altcoin BUT as long as they are honest about it. a centralized altcoin that pretends to be decentralized is the worst thing.
trading, specially trading cryptocurrencies is one of the hardest tasks of all. and it is not just about emotions that you talked about here, it is about the fact that most of this market is manipulation, specially when it comes to altcoins it becomes even more severe and being in a manipulated (pump and dump altcoin) market it sometimes becomes an impossible task to make any profit.