After Registering:
After registering, your channel list will at minimum be three channels: the global "RolloutPTSD" channel that everyone is a member of, a ROPTSD Hub channel assigned by the app, and at least one location channel. If you identified yourself as a particular service type, you will have those channels also.
If you change your profile service type, it will change your membership to those channels (will leave the current if they're the same) and add you as a member to new service channel types.
Changing your location(s) will also change your channels and memberships from current to new channels for those locations.
Changing your ROPTSD Hub(s) will also change your channels and memberships from current to new channels for those hubs.
Channel types:
All users are joined in the global channel and one ROPTSD hub channel when registering.
Any user can join a one-on-one channel with another user by pressing that user item shown on the "Users" tab at bottom and sending a message to them.
Any user can join a service channel by joining with the button on the channel avatar pop-up from Search Results. It can be temporary (you can leave if and when you want). You can also join a service channel by editing your profile and changing your service type there.
To join a ROPTSD hub or location channel, it must be added in your profile. You must be a member of a least one hub, and have at least one location channel set.
To suggest a content filter that is not already taken care of with the current default blocklist of more than a thousand profane words, on the Channels screen, take the menu option Suggest Content Filter. The suggestion you enter will be sent to system admin to alert them for any further action needed.
To delete your account, just edit your profile -- the button and confirm warning is placed at the bottom of your profile settings. All your data that you have entered in your profile and your channel memberships will be deleted, not including any messages that you may have sent.