1 - They don't sell their stuff becuase it is illegal to sell hacks for a console. It is perfectly legal to mod your own console, but I'm pretty sure you can't charge people for it.
2 - They don't give everything away for free. I've been in the iPhone hacking seen for a few years and many hackers charge (quite a bit) for hacked apps for the iPhone. It's gone to the point where there is a seperate paid store for hacked applications on the iPhone.
3 - They have their own motivations. For instance, the recent upsurge in PS3 hacking interest has come as a DIRECT result of Sony removing the Other OS (Linux) option from PS3. It completely backfired when you think about it, cause not only did people find a way to put Linux, they realized how flawed the PS3's security truly is.
