1) I don't know this guy, he may have been busy doing something else. Life happens to a lot of translators. He could also be doing it maliciously like you're implying. Again, I don't know the guy.
2) Dunno, don't care, not reading his work because it's low quality, to me. Rather wait for the better quality more consistent release from Yoru.
3) Dunno, don't care.
4) "Snipe" is bullshit, and not real. The entire concept was created because groups like Jaimini's Box and similar were trying to force other translations off the internet so theirs was the only one available, and in doing so drive up their ad revenue, and later, their paid early access chapter schemes. Someone wants to come in and dump a bunch of low-effort, low-quality work? Whatever. Discard it like the dreck it is, wait for decent uploads.
See above.