On Sep 19 at 11:30 I got awarded with the clean-up badge. But I did not get a notification about it.
Did the badge clean-up it's own message as well? Or is this a bug of sorts?
This is intended behaviour.
We're also hiding several badge notifications based on if you're associated ("veteran") or not (the clutter ones like autobiographer that you get immediately as well).
On real child metas (that excludes Meta Stack Exchange), you're always considered a veteran; on all other sites, you're considered a veteran if you have received the association bonus, i.e. you have 200 rep somewhere.
By checking your profile, you have 200 reputation on at least three different sites. Thus, you are considered a veteran across the entire network. The only bronze badges you will still be seeing are those mentioned in the list:
- Nice Answer
- Nice Question
- Popular Question
- Vox Populi
- any tag-based bronze badge