"syntax" (who is also a user on Twitter) has been ++'ed 0 times and --'ed 1 times by a total of 1 people.
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Operation Sign, User and Reason
--'ed by Hybernaut (they formalized community usage. Syntax was in use on Flickr et al years before Twitter.)
Tweet: Reminder: Twitter did not invent @user syntax--they formalized community usage. Syntax was in use on Flickr et al years before Twitter.