wrong statement.
there are really working cracks. not only for a while.
i have used them for a long time till i earned some money from music production then i bought it because i could afford then. and yes.. not all cracks are perfect, + not arrived in time, and no support etc..
but the important thing is if you use cracked plugins no matter what kind of copy (pirated or legit) of live, u will experience buggy behavior, not only in the plugs itself, but sometimes in lives functions too. not all plugiuns causin this, but the better ones usually.