They definitely know that if enough Mod's jump ship then their communities will suffer heavily. I'm going to guess that we'll see quite a few quit. There will be some that stick around holding on by their fingertips to for communities based around helping others.
But most mods aren't going to be willing to put in extra free labor especially for a company that keep signalling with actions that helping them isn't a priority.
Exactly. Probably going to be some rot in the communities. I wouldn't be surprised if a few months from now we see Reddit offering more incentives to be a mod in order to entice others to take up the reigns.