Reporting inactive players

I am in Expert III. I'm not skilled at this game and even when blue gets totally owned in two minutes, and everyone has better bots and weapons than me, I'm able to deal at least 150,000 damage (that's bare minimum for a terrible game). Thus, when someone deals less than 100,000 damage, caps less than 3 beacons, and they aren't a gold league player dragged in by a clanmate, I automatically report them as inactive. I do this whether they are red or blue. Do you support this strategy? If no, why not?

Example: I just played a game where someone parked their stealthed Loki on a beacon and it didn't move. I killed the Loki (because I love me some Quantum Radar). After the game, that player fit my requirements for being inactive, so I marked him as such.