The thing you should understand about hypotheticals is they're not a substitute for the equal sign. When I present you with the hypothetical "why make murder illegal," I do not mean to suggest that !(proscribing account sales) = !(proscribing murder). There are, indeed, differences.
The text you have quoted was a response to TL;DR: "account sales are a necessary evil, better than they happen here than elsewhere."
If you feel that account sales are desirable, like gun sales in your example, feel free to explain why.
I don't care about account sales, I care about promoting free trade and open discussion as much as possible. I don't "allow" things because I personally find them desirable, I like them, or approve of them.
It's a general ideological position, this isn't going to change.
There are several other forums where people can go if that's what they want.
Hi badbear can I ask you something please?
I know this is off topic so just message me when you see this, then I'll delete it.
But in topic with advice to OP: I think selling accounts is odd, but fine. It probably won't stop scams. It'll probably make it worse, but there's not much we can do. Newbie or legendary, that doesn't automatically make a user trusted or untrusted.