It is not clear to me what the focus of software is supposed to be. Most software used with Bitcoin can either be specified more distinctly, as "wallet", "client", "miner", "website", "exchange", or one of the many tags that refer to specific programs.
software currently has the tag description "Computer programs relevant to Bitcoin or similar technologies". I think it may classify as a meta-tag.
Either the use-case of software should be clarified, or it should be removed altogether.