Sorry if this has been raised before.
If I use the Android app, I notice that in Active Convos, I get pages and pages of threads marked with the 'sticky', some of which are very out of date, before I get to the actual active convos.
Plus if I go to OTBT, I can see very old threads, i.e. ones that should have gone poof after the 30 day limit, which obviously goes against the reason for OTBT. Just thought you ought to know, if you didn't already. 