Thanks Draver. Can you please explain what a community team is and its relationship to Stardock? I thought by posting here Stardock would gather player bug reports directly for resolution in upcoming releases?
As mentioned by gypsy the "community team" is the team of people that interact directly with the player base in order to gather feedback and help players with the various issues they run into. Depending on the nature of the interaction, that information can be passed along to the development team by senior members of the community team. The development team can then make an assessment of the various issues and feedback and decide how to tackle them based on limited available development resources. Not everything reported and shared can be addressed sadly, as development resources are finite, and the team behind GC4 is rather small.
So you are correct that posting your bug report here, and even on Steam as you had already done, will be read, catalogued and shared by members of the community team especially when one of the moderators answers one of your post as I did above as well as on Steam.
As for the particular issue of the 500 defense cap, I agree that it should be modified, if only by exposing it to the XMLs so we could mod it upwards and play test various values. It's a very old request that was made a long time ago, sadly there hasn't been any available dev resources to tackle it, yet!