Yes, almost almost all of us have more than one account, but not everyone uses more than one account at the same time. I think these numbers are correct. There should be a margin of deviation of at most 10%.
Yes absolutely true. For example, GKE looks very nice, but when we use one of their features, it creates the need to use other features too. That's why I warned the boss a lot. Even though they have great features, we try to use generic applications to avoid hooks.
I use it for some niche communities too. Small communities are not infected with bots fortunately. Apart from that, it sucks more than before for sure.
Does the receiver instance federate that like object to other instances? If not, it is shit for sure.