There have been multiple accounts created with the sole purpose of posting advertisement posts or replies containing unsolicited advertising.
Accounts which solely post advertisements, or persistently post them may be terminated.
sgibson5150 , 3 months ago I’ve never done it but it appears that it is permissable. superuser.com/a/1745003
I’ve never done it but it appears that it is permissable. superuser.com/a/1745003