[trzmiel4]

Actually, they have. If you follow the link on OP, you'll see 93 selected issues, not the 941 noisy ones you linked.

They're actually putting some effort into this as well. Not just creating a place for a ton of random junk, pat on the back, "good luck, go figure".

EDIT: Your filter is just "label:mozsprint" across all of GitHub. That's pretty likely to include noise that Mozilla cannot do anything about.