Can I do the reverse now as well? Email a company a unilateral change in the TOS? Or do TOS's have provisions against that as well?

"I do not agree with your new TOS and will continue under your old TOS, and I will continue to use your service". And see when they will close your account down.

Now if most of their customers did that, they wouldn't close down all the accounts. Forgotten power of the people.

IMO, this would make a great court case.

I know I'd be listening intently if I were on the jury. I'm a "sauce good for the goose is good for the gander" kind of guy.

> ... if I were on the jury. ...

Too bad that v1.0 of the ToS their victims "sign" forced all disputes into their lap-dog arbitration system.

My new ToS I sent them allows me to appoint anyone (including my self) as the arbiter.

That's a nice daydream - but v1.0 gave them exclusive rights to update the ToS or pick arbiters. Along with lots of other "heads we win, tails you lose" stuff. :(

They email from invalid addresses, so you cannot respond.