Ah yes, the OP witnessed the
infamous hobby of circle jerking. Some of the self titled "best" tankers do that and then pat themselves on the back for being "skillful".
It does suck that people think it is "fun", let alone being "skillful". I call it shameful and gutless, especially if the camp is from the rear/side and the spawners have no chance at all. But, the guy who keeps upping and giving the circle jerkers something to fire at at keep up the sodomizing with the spawn point deserves what he gets. This is completely different than an engagement when the "meet in the middle" in the name of the game.
Learn to dive bomb. Nothing breaks a spawn camp like a heavy fighters with 1k bombs. Then you will hear THEM cry about being "bomb****ed", that is like the pot calling the kettle black.