#6 I can't see why I would reward any post or, at best, very infrequently and only in gratitude for personal assistance. I think this idea really, really sucks, mostly because it inhibits hitting. I would just comment in the thread that it was a good post. IMO, you really don't want to be discouraging hitting like this.
Do you want to get into a situation where people say "Give me Karma and I'll solve your problem"?
We discussed in the thread the aspect of moving the decimal point and I dislike that idea too for the reasons there stated.