No. You do not receive any FPs on a thread - you only receive FPs, if you are in one of the top 5 (or lower, depending on the GB level) positions - and the FPs are only received when the GB is levelled up.
However, saying that - your particular guild may have some special kind of rules or game going on, that there are FPs passed from player to player via a thread post - but unless you are experienced enough to know what is going on, probably should stay away from that kind of game.