You’re right. Everyone quit when they got their BIS. That’s why the early xpacs were empty at the end and BFA is packed with 12 million players.
You really should stop posting with your “feelings.”
I played with BIS with the same people all through WRATH. Didn’t quit or “dip out” between patches. Wasn’t really a thing back then.
Players weren’t cyclical until Ion suggested they were. He also said they removed the PvP vendors because people couldn’t find them. So it all must be true.
https://venturebeat.com/2015/05/14/dear-world-of-warcraft-players-heres-why-you-should-stay-love-blizzard/view-all/