Same here. When we first get discourse, New users don’t even have a trust group. They do but it is very limited, a couple of badges and they are in T1, but the tag inordinately includes T1 if you tag @trust_level_0 …You can’t add automatic trust level without going to T0 first…even Discourse has not achieved it or made a plugin with that kind of system 
No, not that I am aware of. Or Discourse for that matter.