Berkshire A has 14 followers; BRK.B has 32. Like I said, IHUB has nothing to do with successful investing.
I've owned 3M Corp for years, a great blue chip. It has NINE followers on IHUB. Probably half the institutional investors own or have recently owned 3M. On IHUB no one owns it!
CMKX, which doesn't trade anymore, has 944 followers. Silly isn't it.