Sometimes on the github activity feed I see a "friend" staring a project and I just want to say "No, don't use that. It is obsolete. Use this other-thing inst

Sometimes on the github activity feed I see a "friend" staring a project and I just want to say "No, don't use that. It is obsolete. Use this other-thing instead". But giving feedback like that isn't possible, unless you do it via email/chat.