Answer 1

It's a horrible option to add. It creates HUGE security implications, and the #1 goal for business is to protect your consumers. This is why things are limited to Code Playground, and why Code Playground only allows you to do certain things with your code. If just anything was allowed to be posted for the public to access, many issues would arise from that, so it's more important to protect the server/clients.

Anything complex, it's best to just do it and test it from your computer. Plenty of websites to post your code on if you're wanting to do that for feedback.

Answer 2

I don't know about that, but you can use SoloLearn online! Just go to https://code.sololearn.com