Msg#: 3874682 posted 11:30 pm on Mar 19, 2009 (gmt 0)
Google will ignore the tags it doesn't knows. And the keyphrase is way too uncommon for SEs to use for ranking. So that's neutral. I'd just remove that for the markup/content ratio in case nothing internal/external uses that. E.g. that might be a helper for a script or something like that.