I believe the current rep threshold for suggesting tag synonyms is 2500. That's excessive for our current site, and I think aliases can be quite useful. Should we try to get the admins to lower the threshold for (the private, and maybe also the open) beta?
I suggest we try and form an opinion by voting for a "yes" and a "no" answer, which I'll create as community wiki so that I don't get any rep for the votes.