What happened to my old Halo Waypoint account?

Help! I must have missed what the heck is going on, cause I see that the site looks different, and I’ve seen a post about badges and ranks being removed from the system, so here are my questions-

Is it all a completely new system and everyone is started over?

I had to add my email to the account again, and it shows I’m not even a part of Halo Insiders anymore, is that normal or did something go wrong on my end?

I used to have a special forum avatar from buying the Halo Loot Boxes long time ago, is that all gone now?

I can’t post pictures and such anymore cause I’m a new account, is that because accounts got ‘reset’ or should I be trying to ‘recover’ my account?

Is there anything else I should do or be aware of with the new change?