Sounds to me like all that situation is circling around language barrier. You've made a few mistakes, because you didn't understand/didn't read patch notes, you're trying to make Carver's quotes to sound like something they are not, etc.
Developers add new content without fixing bugs and test it properly.
This is what we are supposed to do here - test new content and report bugs to be fixed, aren't we?
And what's wrong with brickwalls? You had months to reach these biles, then you had 3 days under siege to do so, you also had other protected towns to help you with that. You could fight back after all. You claim to be one of the top towns and have great fighters.
I hardly can see any gamebreaking abuse here and any bugs at all (except for crawling thing, which doesn't sound as gamebreaking as you're describing it from my noobish perspective). I'm sorry, if I am mistaken, but HnH experience taught me to be extremely sceptical towards russians claming that devs are unfair.