My personal favorite Usenet gem is the board for rap discussion:

• In 1991 one guy straight up admitted that he was trolling before saying that MC Hammer and Vanilla Ice were the best rappers in the game and that the Five Percent Nation only used 5 words, and people got legitimately mad at him
• people were insisting that Kris Kross couldn’t be slept on in 1992
• Apparently in 1993 there was a rumor in Pittsburgh that Snoop Dogg(y Dogg) had died
• Vanilla Ice and Markey Mark had still tainted white rap’s public opinion in 1996
• Someone in 1997 said that rap was at its peak because Biggie and Pac died, and that it wouldn’t be as popular in 20 years (lmao)
• One guy was asking who an up and coming rapper named Eminem was in 1998
• In 98/99 someone said that Missy Elliot was the worst new MC (incorrect) but that MF DOOM had the best 12” (correct)