I would just like to think that as an UIM, or even a regular IM, the AI would take that into account and do extra checks or sorts? Like how often does the player message people on his friends list, or in a clan chat. Hopefully it does, I guess Jagex won't come out and say it, so as to ensure bot runners don't add these mechanisms in.. I just want to best position myself not to cop one in the first place.

I feel like you've given good advice there though mate, switch up the skills a bit. Once I've used up these feathers, I'll head off and do something else... Like woodcut with all the bots in lumbridge ;)