Re: "I would like to see a lot of these "dead" torrents buried (deleted) after not being seeded for a period of say 3 months."
I've re-seeded a dozen or so dead torrents with the last few weeks, with many more on the way.
For example: https://www.gaytorrent.ru/details.php?id=701c7c4f39020e56a64a1fe1d0a7da4c8a97f897c6602c66&rated=1
It's very convenient that some inactive (dead) torrents have not been deleted. Makes 'em easier to re-seed.
Maybe only duplicate dead torrents should be deleted and whittled down to one.