Okay, here's the thing. When we lock threads, we get criticized. If we don't lock threads, we get criticized. If we delete things... criticized. Don't delete things? Criticized. All the criticism is one reason we don't usually explain why we moderate things the way that we do. We can't please everyone all the time.
The mods are a very diverse group of individuals, also. A post that might not bother one mod might bug the living snarg out of another mod. We tend to go with the moderation of whoever feels the strongest, tempered with the opinions of the other mods thrown in.
I'd also like to emphasize that we mods are all volunteers. None of us get paid for what we do, and we do it in the time that we have. If you do have a problem with the way we moderate, a PM (Not a demanding PM, let me state, please) explaining your point of view, will be read and shared with the moderators and we'll see if we need to change the way we do things.
A thread "Calling out the moderators" for their actions is just never going to go over well, though.