To post on a per-site meta you need to have at least 5 reputation on the parent site. To post on Meta.SE you need to register, but you don't need to have any reputation on an SE site.
Now, Meta.SO is both the meta for Stackoverflow and the meta for the whole network. But wouldn't the reasons to require a minimum reputation on per-site metas be equally valid on Meta.SE?
I'm not entirely sure what the main reasons behind the minimum reputation are, I can think of a few possible explanations:
- It prevents users from accidentally posting on meta when they should post on main
- It prevents noise from users that aren't active on the main site
- per-site metas have far lower traffic, so community moderation is not as effective and a higher barrier of entry might be necessary
Requiring a minimum reputation (especially if also enabled on Meta.SE) also might have some other side-effects:
- 1 rep users have no valid way of challenging community or diamond moderation actions except mailing the SE team
Would it make sense to enable the minimum reputation also on Meta.SE? It would reduce the number of completely off-topic posts on meta.SE, but might make it harder for 1 rep users to challenge moderation actions. Or is the minimum reputation barrier not needed on per-site metas and should it be disabled everywhere?
Maybe I'm also missing a reason why the minimum reputation requirement makes sense on per-site metas and shouldn't be enabled on Meta.SE. Or maybe they should be disabled on the per-site metas as well.