Board Thread:Support Requests - Getting Technical/@comment-4962933-20150208213014

I have located (and altered) the page MediaWiki:User-identity-box-wikia-contributor at my wiki. Is this the only thing needed to change the description on the wiki? If so, is it just a matter of time before article comments reflect the change? (I've purged several pages, and bypassed my browser cache, but only individual IP pages show the new label so far.)

Or, does it only show on new edits following the change? 