Honestly, the fact that it became a drama. When a company's actions affect their entire product in such a negative way, it heralds the end of something. I sincerely doubt that this is something reddit can recover from in an easy way. I will still visit for things like /r/ParadoxPlaza, /r/askhistorians, /r/kerbalspaceprogram, and /r/visualnovels, as these were rather unaffected and may take some time to migrate elsewhere. And considering my usage patterns, they would totally flop if I tried to create such tribes here.