North America observes DST two weeks before Europe. DST ends for Australia two weeks before North America (time goes the other way). China does not observe DST. I won't even bother to get into the other countries.
Even disregarding the other issues that DST created (and trust me, there were lots), just syncing up players for events was a giant hassle. Yes, people should theoretically research and know how their time works, but expecting users to sync your events to their time without missing one or two is naive ignorance. Even with mitigations, my staff and I basically spent every DST start/end dealing with a plethora of IRs to the degree of, "why did you change the time?"
I would not miss DST at all.
(We did standardized time quite early on, and did announce in server-time)