Would it be a difficult undertaking/bad idea to allow dropbox/scirra links specifically to be posted by new forum members? Seems like it could be a good idea.
That sounds like a more than mildly good idea (very much so) and would cut down on frustration/waiting around for a user to find some way to link their capx.
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We've had extreme problems with huge amounts of spam in the past, and any loopholes can and will be exploited hard. It's easy for users to work around anyway, just drop the http and www parts from the link.
I think this idea is very good. Moderators can keep the good users and ban spammers !