If that is real then that is absolutely insane. I had no idea. I only learned of him recently during a Rick Beato interview, didn't realize the guy was this nuts.
I wouldn't be too surprised if they're real, and yeah it's pretty gross.
Albini was a well known edgelord in his 20s, and liked to say shocking bullshit to provoke & upset people. It's hard to say if this is evidence of anything beyond that.
He has been very apologetic for at least some of his past antics, band names, lyrics.