I suggested [gtk+] and [gtk2] tag synonyms for the [gtk] tag; by the next day they had disappeared without a trace. Does that mean they were voted down to -2 and therefore rejected? If so, I would like to place a feature request for being notified when that happens.
+1 because it's a good idea, but for the record: gtk+ and gtk2 are not good synonyms for gtk. Specifications of a generic topic are not good candidate for synonyms.