or someone does not like the topic!
Never known topics to vanish, well, not a few anyway, though I have known them to vanish into the hole in the Internet just when posting!
But not after seeing them posted by a user.
I am an admin on a few boards (fewer now since that scurge Facebook came about) and once on the board the only way they can vanish is if someone deletes them.
![Roll Eyes ::)](https://forum.avast.com/Smileys/default/rolleyes.gif)