[humanpuff69]

You could set up miner script, something similar to coinhive, in your website. Although coinhive was already shut down, there are other alternatives you can search Google on your own.

No one says it is not allowed, as long as it is your own website. But it will certainly scare most of your visitors away.

it is allowed but it will make the visitor device slow like you said . i used to have extremely slow pc that is barely usable . and when visiting a site with a mining script it is just instantly hang and the cpu go up to 100% and the funny thing they probably dont get much or very little from slow pc

the solution of that is probably tell the visitor that it is mining and have the option to opt out . so there is an option for lower end slow potato pc user