When is a large instance too large?
The bigger threat to ActivityPub right now is the admin’s credit card or legal liability due to hosted content. The most successful open source projects either become or attract commercial projects. IMO, the hobbiest operators will be the downfall of ActivityPub. The hobbiest operators are subject to life happening. I would love to see the number of Fediverse instances that have blinked in and out of existence.
Yeah, but paying $300 for one is crazy for the average home user. If I am spending company dollars, then sure, there is a reason to go for the brand name. But for my home setup I want something between cheap and crazy expensive.