1. The reason we dont allow one person to install a mod multiple times is because people would simply abuse it to boost install counts. I dont see the use of two counts.
It's rather unfortunate that you don't see a need for it, and its pretty much decided by that factor. I could understand you're point about boosting install counts if they actually meant something or there was a golden number a coder had to reach to arrive in coder heaven but thats not the case, it's a pretty meaningless number and if people want to sit there and inflate it all day than who cares.
A possible fix would be a simple check at vB.com with the number of licenses a user owns under their account, and limiting the install clicks to that number.
It's pretty sad the largest adjustment this site has made in 3-4 years is increasing private message storage.