Absolutely.
We are all human.
I've posted fares on Mileage Run that turned out not to be bookable. I have said things in haste in a thread that I regretted - and later took the opportunity to edit them.
Most every candidate has made these sorts of mistakes.
I will say, however, that I've never commited any infraction on FT serious enough to require a time-out. Not all of the candidates (including some of the front runners) can say that.