Why are forum members poking fun at the OP about this, or making light of his problem and what he perceives as poor workmanship on the part of Smith & Wesson?

If the factory can mess up the outside, they could just as well mess up something on the inside and the gun's owner wouldn't even see it.

Again, the gun type and its price are immaterial here, in my opinion. You send a gun in for repair, you have a reasonable expectation of getting it back with repairs properly done, and done without the factory messing up something else in the process.

Properly executed repairs are a basic tenet of good customer service. What's so hard to understand about this?