Did they have a "reason" this time or did they just take over it?
And congrats to the mod who made it private again. This is the way.
I don't think protesting or creating backlash could change the behaviour of the mods (spez has been caught editing users comments before, for example). But I do think that angering redditors could ultimately be good, because they will start looking for other alternatives to Reddit. The only real way to hurt the company is a mass exhile by the users that generate the content.