As much as capitalism is a truly shit system to actually live in, I don’t think it would dissuade time travellers much because it’d make it trivially easy to live like a king with only a little knowledge of the future

Timelines merged together to "mend and fix" these paradoxes, that’s why we ended in the Mirror-Universe equivalent. Mandela effects are just glitches from the other timeline remnants.

Don't threaten me with a good time!

Even without that (or if he wasn't, was it clear from what came out that he participated and wasn't just another famous science guy Epstein pulled into his orbit without any kids being involved?), I can't think of a single good reason for an actual time traveler to want to go to that party and plenty reasons to stay away from it, like it being the one party most likely to lead to someone else figuring out time travel sooner and taking control of it before you can.

Though if time travel is possible, I bet it's the branching miltiverse scenario and we're just in a branch where no time travelers have revealed themselves yet. In that reality, there's no reason to avoid his party, other than not wanting to be stuck in a Q&A session with primitive humans. Like I bet any of us would get frustrated going back to the middle ages and how people interested in health won't shut up about fucking humours, muccous, evil spirits, and shit.