Trying to build a community by giving away free shit just attracts trashy folks.
Look at DOGE.
People need to earn their wealth to give a shit about the whole.
This it the sad truth. People are not value things they receive for free. Donating BTC to these 'notable twitch' personalities could create impression that Bitcoin is currency of low status, no value and bitcoin fanatics are desperately trying to promote it by giving it away. Also I am wondering, how much will they gonna 'donate'? $5? Please...
Those are generalizations.