Technically speaking, a Steem-like clone could somewhat function under Tron, with a makeshift proof-of-brain smart contract

Somewhat key word. It would be some MacGuyvered shit from hell. It's a waste of time when you have a working product already.

lol, you speak my language

You know it! 😉

So, for like what you described up there. It's like when they try to port a high end console game to a shitty handheld.

Cant think of an example off the top of my head but you know what I mean.