If your position is sound, there is absolutely no amount of "chatter" that should cause you any concern.

If your position is easily undermined by anonymous posters on reddit...

In any case, it will only delay the inevitable. If NASDAQ halts trading on an equity, they just prolong the agony of a bad short position. How would Citron have been helped by a delay? Its a loan, the longer its open, the more you pay! So a trading halt is actually counterproductive for short hedge funds, what they really need is the quickest exit possible