I remember there was a really unique community that sprang up on The Sims Online that was all about diy internet radio. Not sure what that was all about, but a dj did a shout out to me and I thought I was hot shit. I think I quit after the person who owned the property I hung out on tried to groom me. Fun tiiiimes~
My lasting memory of The Sims Online is that the only way to advance was to grind your Sim's stats by using equipment like exercise machines, or making money by playing minigames. Instead of people building dream houses, they would turn their homes into dystopian experience farms. An unintentionally dark inversion of the wish fulfillment of The Sims.