> I think none of these issues really matter.
I think that's probably it. I.e. it's a nobody-cares issue. Looking at the older posts, there's some serious issues with lzip too (looks like corruption-related) that got a less than stellar response from the author.
Just quickly tested lzip vs zstd -9 on a 100 megabyte text file. zstd is almost as good but many times faster. I wonder if the lzip author's work got obsolete.
I skimmed the manual of lzip a bit. The author likes to talk a lot about how everything is done correctly in lzip and there's this line line "The lzip format specification has been reviewed carefully and is believed to be free from design errors. " If you type lzip --help it talks about how it's better than bzip2 or gzip.
Maybe they are right but ugh comes off real arrogant.