Seems like he does get banned frequently by mods, given he has like 10 accounts created on a number of servers in the past few months

Maybe they saw this dude

I get at least one a day over text just saying “hello”

Have since started reporing as spam and blocking ever single one

Those parts are not paralleled. They could be switches so that each rear / front I/O jack can be used as a microphone or speaker, so if youre lucky it could just be the one that lets you configure a speaker output as a microphone input