No, I don't have a list. The first homebrew that I remember that is not blocked is PKGi.
Yeah you are right, it's not blocked because PKGi id is similar to the official ids.
If @aldostools said it's not related to webMAN MOD but related to Cobra/HEN/Mamba, can it still be edited in XMB in someway with the help of your custom menus and wMM? That's what I was suggesting in the first place =).
Yeap the file can be created using webMAN commands,
/write.ps3/dev_hdd0/tmp/blacklist.cfg&t=NP00PKGI3



just like in the example below: