Yeah, pretty much all of those we wouldn't allow you to post or ask for which should mirror what is allowed in-game.
First names we allow because a lot of people actually use their first name, which is fine.
Any personal information whether it be real life stuff like your home address/suburb to your last name or online information like usernames for other sites to email addresses can be used in a way to actually find out who you are.
This is actually a pretty good topic to talk about internet safety which is the whole reason we do restrict these types of information. Basically, unless we have met people in real life they are strangers, we might talk with them or play the same game for years but until you meet them in real life they could be anyone. This is why it is really important, we as a company and you as a player, need to work together to try and protect each other's information, to keep everyone safe.
Even if you think something might be ok to share, you really should ask permission first whether it be your parents, a trusted adult or us here at the Aetherlight team, we are here to help so don't be afraid to ask questions! If you don't want to post it here feel free to contact us through Customer Support myself or Lady P are always checking those.