Well yes, I guess what I posted above was a suggestion, but to tell the truth I don't know if you even have it in your power to implement because I don't know if this forum software is an outside package you purchased (i.e. features are frozen), or if it's something you actually have the ability to modify. (Plus even if it is modifiable, if I'm the only one making this suggestion, it's understandably low priority.)
Yes, it hack be hacked in, but it really is not something we would look to do I am sorry to say. After all the years the site has been active, this is the first such request. Even a poll can be search for by title more or less. It just does not give the option to search for polls only.