Using the waste heat makes much more sense in a new development, as the properties would be designed to make use of the waste heat rather than having to retrofit it later alongside a conventional heating system.
You would assume that the server farm would have its own connectivity, and having installed it they could use the same physical lines to provide service to the residents, so long as it's optional and you're not forced to use this specific provider (their service could be terrible).

A lot of school systems are set up to memorise answers to exam questions, rather than actually understand the topic.
So the homework doesn't need supervision of a teacher because the kid doesn't need to understand the content, he just has to keep reading it until he remembers it.

Ideally you should be taught the topic properly, and the teacher is around to make sure that you actually do understand and aren't just repeating memorised answers.

Noone needs homework.
If you're having to do work at home after school, then it means the teacher hasn't done their job of teaching the stuff in class.

What you're seeing is when the classroom is a poor place for learning, due to disruption from other kids such as bullying, or a class which moves at the pace of the slowest kid. All of these are faults of the school and teachers, not something to pass on to the kid.

I have it running on a 1GB vm where the total memory usage right now is 450mb, so that leaves quite a lot free.
You can self host on a pi, even the cheapest model has 1GB ram these days and it's not hugely more expensive to buy the larger models.

The giant clusterfuck of email delivery is a separate issue, although if someone has explicitly triggered a signup email they will be expecting it and will usually check for it having been flagged as spam. You don't actually *need* to use email delivery, there are several other options.

Very few ISPs intentionally block inbound TCP. What you're seeing is a side effect of IPv4 depletion where ISPs are forced to implement CGNAT.

A lot of people have to self host on IPv6-only for this reason, but then the site is inaccessible to users stuck on legacy networks, and worse is that no current browser provides a descriptive error message when that happens.

Many people don't have the knowledge to configure and manage such a thing - yes even developers. System management is a different skillset and there isn't always crossover, and if you do it badly you could end up leaving security holes.

Many people have nowhere to host such a thing. A lot of ISPs are implementing CGNAT, and IPv6 is not yet everywhere so peoples options for self hosting are often limited.

They have historical precedence. There was another group that were ideologically opposed to the existence of jews, and while not totally destroyed they were eliminated as a unified force, leaving only a few far less threatening stragglers.

Hezbollah, Hamas and Iran would absolutely destroy Israel if they could. They have vowed to do so continuously, and have never stopped plotting or executing attacks.
You may disagree with Netenyahu's methods, but it's very much in the interest of Israel to eliminate enemies who have vowed to destroy them. Not doing so really isn't an option, they will simply keep attacking and growing stronger until their attacks fully succeed and Israel ceases to exist.