I separate my threads into two categories: threads that I am invested in and want to do well and are various degrees of serious (General Chat etc) and threads that I made for a laugh and do not care about and probably don't make any sense (Final Fantasy threads and a couple EoEO).

The serious ones I care about usually die quickly after my topic is laughed at and my Final Fantasy threads get nominated for Best Thread, have pretty huge post counts, and cause prominent members to join the forum and generally make everybody happy.

I just stick to the Final Fantasy threads now mostly