And some of us would be more than happy with a very short emote cool-down, too. In fact, you know what? I'd really rather like a delay of about five seconds on being able to use standard emotes. .. Although before someone inevitably claims as much, I'm not arguing that jump ought have a five second delay and all. Personally, I favour something more like the landing animation being locked; not least from the gameplay sense that it encourages people to try to time any game-relevant jumping rather than just spam and hope whatever they're aiming to achieve works out for them.
This is our opportunity to voice concerns about future features. The point is, if enough people voice concerns about it being spammed to all hell, perhaps the developers will consider implementing the feature in such a way as to make it so that people are not free to do so. The nature of jumping's implementation is at this stage not set in stone as a death-spammable bunny hop, and to a limited extent nor is it definite it's being implemented at all, although it is now extremely likely.
As for your little point about a conflict of interest.. so what? Human history's been one massive conflict of interests from that point of view. The ideal striven for, or even pointed out by someone who does the opposite, still has some small value (although obviously so does pointing out the person so saying's doing similar). Just because people act or even threaten to act like spiteful little bullies a lot of the time doesn't mean people shouldn't point out how horrible it makes them look.
I mean, really, how does, "I'm going to find the characters said they didn't want jumping and follow them around jumping endlessly just to annoy them, even though I got my way," not read like a total dick move ('scuse my language), and something for which any reasonable person ought look down on the poster of? ... Of course then they'd open themselves up to a harassment report but.. well, anyway.