> Using an example to illustrate this, if Reddit it came to me and attempted to charge me to moderate my sub, I would say no. If they offered to pay me to moderate, I would also say no because that would come with an expectation, or some kind of SLA or otherwise that I am not prepared to give.

If Reddit came to you and tried to charge you to keep the subreddit running at all – as in, it'd be deleted from the web if the mods didn't pay – would that change the answer here? I have this suspicion that – for at least some smaller subs – it would.

And for bigger ones, I would guess mods might not... perhaps because they guess Reddit is already making enough ad money off their work for that exchange to seem unfair.