So what, we should disbelieve all conspiracy theories by default? In the rare case it happens to be true, it'll probably be too late to act upon, just like COINTELPRO and MKULTRA.

We can assign the possibility of Q being true without actually taking a side and acting on it. I can say "this is both compelling and unlikely to be true, but as I long as I don't have to act on it, it doesn't matter if I believe in it or not". We can let the evidence over time build a stronger case for it or destroy it.

The only reason I can see not to do that is if it introduces unacceptable consequences in the meantime, as the article is suggesting, but it seems like the reporting against it is ridiculously cherry picked and disingenuous. There's probably a much stronger case for stopping BLM as a organization at the moment, but I don't think I've seen an Atlantic article suggesting that.

For the time being, Q seems like a harmless movement. It would be a red flag if Q denounced a group of people without justification, but Q has been pretty specific about the things and people it denounces, and if things go according to Q's plan the people it's denouncing are going to have their chance in court .