I can imagine a sophisticated account attack where someone were trying to discredit another user using impersonation and then bad practices, so do think that it's important to be cautious in more than one way.
That doesn't make any sense as the RainbowcityDAO account was using that Ethereum address before kxwhalexk posted it on Twitter
for the first time.

You should attempt to examine whether what you are saying is actually applicable to a situation before attempting to introduce it as a "what if...." You are just needlessly interjecting confusion.