Join Date: Jul 2005
Location: London, ARN, HEL, ..... or MAN
Programs: BA GGL / GFL, Mucci Diamond!, HH Diamond, Radisson Premium, IHG Gold, Hertz Gold
Posts: 5,900
My advice would be that if you're planning to say thanks, do so before the thread goes off-topic... therefore I would do it within the first 5 posts?! Definitely only once per thread as well, you don't want to appear needy!!