Then null will be returned, as the value of b.

If it has the information, why not?

Naive altruistic reply: To prevent harm.

Cynic reply: To prevent liabilities.

If the restaurant refuses to put your fries into your coffee, because that’s not on the menu, then that’s their call. Can be for many reasons, but it’s literally their business, not yours.

If we replace fries with fuse, and coffee with gun powder, I hope there are more regulations in place. What they sell and to whom and in which form affects more people than just buyer and seller.

Although I find it pretty surprising corporations self-regulate faster than lawmakers can say ‘AI’ in this case. That’s odd.

Which might be seen as a positive by some people (not me).

It encourages social interaction. Every answered question becomes a valid option to ask again just a short time later. And to answer again.

It also takes the burden to search from those who have questions. Just keep the chat flowing.

Maybe it’s a bit like asking people on the street for directions, instead of using your phone. Less efficient and accurate, but you might get a smile in the process.

There’s no general answer, it depends on your personal preference.

If you want to have most content available, register on an instance which has an according policy; which federates with anybody and is federated by everybody (both directions can make a difference).

The downside however is, this also opens the door to all sorts of bad actors, including bots and spam.

So I personally tried to strike a balance and am so far quite happy on lemm.ee.

This tool is pretty handy to make informed decisions: https://fba.ryona.agency/ It allows you to check federation status both ways.

There should be a place to document all the nuance around hosting an instance plus some tips and tricks.

The Wiki: https://joinfediverse.wiki/What_is_Lemmy%3F

Hopefully it gets new contributors and maintainers from all the new users.