Originally Posted by
Kilee25
If you are using the haste build, you generally spend orbs after you get 3, but after a single MS....
It's possible to chain Insanity for 8 GCDs if you delay Mind Blast, but I don't think that's a good idea... that works with other specs though because Mind Blast has a longer CD. (What I mean is that it's actually a DPS increase when using RoW + AS or VE, to let dots fall off and get the maximum Insanity channel between Mind Blasts.... but those specs are so much lower than RoW that it doesn't matter anyway...)
So yeah. Basically I got no clue what "Insanity Spam" could mean. Your other spriest either doesn't know what they are talking about, or they've coined a strange phrase for something common that everyone does. I'd ignore it if I were you.