It might get confusing it the beginning. We are still planning on integrating more services provided by our platform into disroot account.
Currently with your disroot account you can reach:
For those services you need to create separate accounts:
Diaspora will remain having it's own user authentication / creation. The reason is quite simple. Diaspora at the moment does not support LDAP. The moment it does (unlikely) it will be probably impossible to migrate existing users to new authentication setup. Giving additionally the fact Diaspora is under heavy development and things are changing very rapidly, developing ldap or SSO implementation into Diaspora will mean that it needs to be maintained which is beyond our man power here at disroot. However we will keep our eyes and ears open for a way to incorporate this service into disroot and as soon we come up with something we will let you guys know.
As of 31st October 2015 you can login to forum with your disroot account.
If you don't have one, don't waste your time and get it at https://user.disroot.org