I approved about 50 edits by one single user the other day, where he fixed the word "sqllite" to be "SQLite", as is correct.
Even though that created a lot of traffic in the approval queue, in my opinion, that was the whole point of having the editing system and the approval queue in the first place. To allow people to fix things.
In my mind, no, this isn't abuse at all, this is exactly the behaviour I felt was encouraged by the system.
Having said that, I agree with the accepted answer in that I did spot other mistakes in a few (mind you, a few) of those posts that weren't fixed, but on the whole I felt the user was doing a good job. "SQLite" was at least something that people would be searching for.