My efforts are always towards making my system better. Whether it be a good antenna, better shielding, addition of ferrites, or whatever, there's always something to do. Just when one thinks they are done, something changes, usually in the form of interference! I thought I had my MW filters all set and suddenly overload again. Turned out that the 50KW station 5 miles away, switched to their AUX 14 KW station that is only 1.5 miles away. I notched that out and watched until they switched it back and I took the notch back out. RFI from neighbors is tougher to solve :-)
I think that Radio Hobbyists have become more and more "appliance operators", as we hams found with the advent of cheap 2M radios. That is, they often have weak technical skills and often aren't even aware of problems let alone how to fix them.
I wonder how many kiwiSDR owners are active on this forum, particularly those with public systems?