Sorry, if it was posted before, but I did not find anything related to this issue. Simple idea. I think vBuletin platform supports this. Some forums, like the Blogging one could use some extra love by implementing some prefixes for the threads, where people ask for help. For example, the thread "Help me wit my blog" will be easier to be understood by the members, by adding [WP] or [Blogger] "Help me with my blog".