You misunderstand and are putting on me things that I do not subscribe to. I'm fully verse and idgaf about Top and Bottom roles, I fuck ass and get fucked by dick, there's no "bottom shame" on my side.
When I'm looking to hire a Blacksmith and I see an Ad for someone, and I check their work and ALL of their work is in Carpentry, chances are, they won't be as good as a Blacksmith as they are as a Carpenter. There's no shame involved in it. There's no 'societal roles' and the like. Can they do the job, yes or no? If I see an Ad for someone and see all their smithing work chances are, they'll do a smithing job without issues.
The times I've hired a Carpenter to do Smithing work I've been very disappointed and so I don't hire Carpenters anymore and ask them to do Smithing work.
Do you see now how I see it ? Top/Bottom it doesn't matter, can you do the job yes or no and I've found that those whose content/profile mainly features them bottoming it doesn't inspire in me the confidence that they'll be able to Top and to that effect at least 6 guys have had issues performing the way I describe.
So yes, that works for me to self select. I'm looking for a Blacksmith and a Carpenter just won't do, even if they swear they can do Smithing work.