Freebase has another 18,000 Twitter handles which are linked to IMDB, G+, etc which don't have English Wikipedia links (as well as 13K which are linked to English Wikipedia, although those should be in Wikidata too).
http://tinyurl.com/omb6bxf
I know some Wikipedias actively discourage links to social networking sites like Twitter [1]. What is Wikidata's position on Twitter handles? Is the existence of the property P2002 sufficient justification to fill it in? (Unlike enwiki's "Yes, we have Twitter template, but you shouldn't be using it" stance [2]).
Tom