I am sorry, I meant: Is there a (sticky) thread called "Suggestions"?
I am not very familiar with Community Forums. But if it were possible, I would suggest 2 things:
1) Lock and put some sort of check mark next to the threads that have reached a satisfactory answer (according to the person who started the question).
2) Instead of having long lists of well-deserved posts like "thanks", "great idea", "I have/had the same question", and so on, why not have some sort of "I like it" or "thumbs up" button? I know it may be a cliché, but it is a far better way than to congratulate posts cluttering the thread.