RiotLyte, am I any good at reporting?

Hey Lyte (or Riot in general), love the new system, I have a few questions and I wasn't sure where to take them.

So last night I had a quick Dominion game, and one of my team mates was telling people to kill themselves, calling them bronze, and yelling that no one who wasn't plat got an opinion. Pretty clear cut, I reported them for telling people to kill themselves and moved on. Never got a feedback card though, and it got me to wondering.

How would I know if my report score is worthless or not? I know that if you do a lot of reports that the system rules are false you get flagged as a false reporter and your scores mean less. I tend to be very critical of people who use racist, sexist, or homophobic slurs (saying even one is enough to get a report from me), but I thought the community had decided as a whole to reject that sort of language. Have I screwed over my score by over reporting, how would I know?

The game in question: http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/1835872266/39154944?tab=overview