From the perspective of all the replies in the whole forum? Yes they are. More people have had their say about the removal of CQ than about:
-Moon mining revamp (202 unique replies - 8 Dev replies)
-Plex being expensive right now
-Exoplanets (118 unique replies - 4 Dev replies)
-Ship redesign: Rupture (75 unique replies - 6 Dev replies from 2 devs)
-Improvements to the map and UI (1 Dev reply)
-Structure improvements (1 Dev reply)
And so on, and so on. Just for the sake of being argumentative, lets see how many unique replies… Ok got bored halfway through, and my math skills are wonky but should be accurate to about a ±5 error margin.
So, as I see it, a lot more people bothered to voice their opinion on the forums about the CQ than any of the above, which are “core gameplay”.
Incidentally, almost all of those had several dev responses (4-8), this one doesn’t have enough to show up on the frequent posters list despite being more popular issue than any of those mentioned. Thread search shows 2 replies from CCP Falcon.