Hi January, welcome to the forums!
The reason that the warp gates are exploitative is that their continued presence doesn't offset the lack of AIP increase, really. If players are able to keep AIP really low, then they are able to withstand the waves from warp gates left scattered around. Leaving warp gates scattered around helps keep the AIP low, so then that becomes a self-fulfilling cycle: you're able to withstand the waves from anywhere, and the waves are boring, because you left the warp gates on all the planets you took.
That then provides a markedly easier game experience, because players are able to trick the game into having too low of an AIP compared to what benefit they derive from capturing planets, which is basically the nature of an exploit compared to simply a clever and unusual strategy.
That's my feeling on it, anyway. Glad you like the rally posts change!
I agree on this. I never really thought about it before either, I always nuked Command and Gate on planets I take. I usually purge the systems I take entierly
.
Having a way to "fool" the system is imo not that fun, after all I play to have a challenge, and a challenge AI War provides
.
In fact, I may need to up my difficulty some more soon
. Not sure I am ready for diff 8, but soon
.