The most stable coin ,have the possibility of collapse?
This question Troubled me for long time,Thanks for answer

Yes.
What are the reasons to think so? I saw people writing that tether is not used as much as it seems to be used or something like that, but is not this coin the safest one among cryptocurrencies, since it is regulated and backed up by dollar? I guess this coin can't make one earn profit as well as lose anything. It is just kind of an electronic version of dollar which works like a cryptocurrency. I can understand why people hate it ideologically, but I don't see it possessing any real threat.