Huh what? SEO is an acronym for Search Engine Optimization, it's not a person. A webmaster doing SEO on their website will however value such steps to get a good ranking in search engines (like a tld with 'bitcoin' in it).
SEO isn't easy, you'll have to edit a lot of your content to make it include your targeted keywords. I do have a website ranked 11th in a keyword with a 200k search volume month, but that's as far as I'm willing to take it. LOL.
SEO Is also a job type, "Search Engine Optimizer", I can assure you a million percent that is a real job and real job title

Every person should do proper "SEO" work on their sites initially, but I am gearing my response more toward the people that would care that much over such a domain name, they better be putting that extra worth in to get the value out of that domain.
Also, you need to start going for number one with terms

Only go for number 1, or honestly don't try (I know this is a general statement, there is obviously enough terms out there worth grabbing for almost any spot, but I like to think bigger).