Exactly the title

incase they need to contact you or you need to contact them, for example you get blocked and need to speak to them about it or your username is your real name and need it changed

To have more confirmation that you are actually a human and who you say you really are. Pretty much every site uses emails to confirm this and also to send stuff like password resets and other stuff.

Thank you everyone, now please don’t comment here

maje09 wrote:

Thank you everyone, now please don’t comment here

I'll close this for you as resolved.