@Robbo99999 acording to this pool most people don't and its far from perfect. In order for you to say how it's perfect and majority of people prefer it more than two thirds should have answered that it's perfect. I am not attacking it all that much, think it has to do with partial hearing loss compensation in lows but that's just my theory for now. It can stand as private or this or that (subjective) but as a scientific one it simply cannot.
So you're rejecting the results of Harman's controlled, double-blind listening tests because you claim they're unscientific, yet you accept the results of an informal internet poll open to all manner of abuse and biased responses?
And it's not only the responses. Like many of the polls posted on here, the provided options themselves are inherently biased, completely skewing the results. There are two options for liking less bass, yet only one for liking more or the Harman target bass being perfect. And even this option is inherently biased, just by using the word perfect, which restricts the domain of preference for this option to an exact value, making it less likely to be chosen, whereas the other options are all ranges that can be interpreted as varying undefined amounts, increasing their coverage of the preference spectrum. Then there's the OP's completely unnecessary opening sentence which primes readers against the Harman target from the start, making them think it's the norm to prefer less bass than the target (contrary to the research):
Many think the Harman's target curve for headphones has too much bass.
This all completely invalidates this poll, even without considering the innumerable potential biases of the responders, which is the very thing Harman's research removed by conducting double-blind tests that clearly demonstrated a large majority preference for their target.