how would you propose to do this if this was YOUR board?
Here’s what I would do.
Firstly, I’d make it an explicit rule that users must agree to.
Secondly, if someone gets caught doing so, warn them.
Thirdly, do it enough times (twice, thrice, whatever…) then ban them.
Yes, I know that you can’t 100% prevent it from happening. I’m not suggesting that it’s possible to prevent a person from posting under someone else’s account if they are so inclined.
Here, however, the practice of “guest posting” is not only tolerated but expressly allowed (see HIE’s account). That, IMHO, is bad policy. I think users have the right to expect that if they see “WolfishMusigns” as the author of a post that it’s actually me (to the best of the board’s ability to enforce that). There’s no reason why users, seeing a contradiction in my posts, should have to figure out “now which Wolf was that…”
The Wolf