yes weku, whaleshares, etc.. all clones right now, but if steemit inc continues to embrace centralization they might be the knockoff in the future. it's quite unlikely to happen any time soon but who knows.

for now steem will always be my main thing. but like you said, every social has a different vibe, contents, audience, and value. i just think it'd be better to utilize other platforms as well. i might change my stance later on because i don't even know where this is going, but for sure i'll be sharing as much as possible and continue to try different things 😄