/followsoff
Give moderators the ability to temporarily suspend the ability for new viewers/chatters to follow the stream. This would be a useful feature for when followbots and/or hate raids attack a channel, the mods could put /followsoff (or similar) in chat to make the follow button unavailable for that stream. This would prevent mass followbots, prevent hate raiders from following, and prevent the painful process of streamers having to break away from their content and deal with turning off alerts and other mitigation measures. The mods could then use /followson (or similar) to reactivate follows. (There could be a "default" where follows are automatically enabled at the start of a stream as well, to prevent accidentally leaving this setting active)