Cuts both ways - I'd much rather be shorter. People may take me more seriously in professional environments but they are intimidated by me in social ones.
At 6'6", I like my height - but it took some work. I've learned quite a few tricks for matching eye-lines with the people I'm talking to in social settings.
This generally includes leaning slightly at a bar, or sitting in / leaning on a stool while people are standing, or spreading my legs a bit while standing, or standing further back. I also still end up with a bit of a slouch on rare occasion - something that was hard to shake from my teenage years.
These things are all pretty habitual for me now, where I don't even realize I'm doing them.
I had a couple of friends try a number of online dating sites/apps over the past few years and whenever they would show me profiles I was pretty surprised to see so many women with a hard cutoff of not dating anyone under six foot. I never really realized how short I am at 5'9" prior to this.
Also largely (heh) an American thing. In Europe I've rarely if ever seen 'must be at least 180cm tall' (I know 6ft is 182, but 180 is similarly rounded). Could be we care less due to Old World tallness.. we are decently tall compared to Americans. See Scandinavia, West Europe, Balkans, etc.