Can a FM teach anything that can't be freely accessed with public resources?
What guarantee can a FM give that they won't teach bad habits or give bad information?
Is there any third party sources noting whether or not the FM is self aware of their own struggles / obstacles in chess and what is holding them back as a player?
What is to keep them from imparting the same mistakes to their would be students?
Really short post but deserves a complete resume or, realistically, a website if the would be teacher is serious about trying to do this job...
An chess coach can do something very valuable that a book cannot: identify your weaknesses. They're a titled player, so they can obviously give some good advice.
Good advice compared to what? Many players run the risk of giving bad information / teaching bad habits or values. There is a huge range between titled players and it's not obvious that a FM is proficient themselves, let alone able to teach others. Teaching and playing chess are very different skills after all.
To get the FM title, you need 2300 FIDE elo.
even if they teach me bad habits, those bad habits got them to the master title.
therefore FM Coach > No Coach
Perhaps if the client is weaker than that. If they are relative, or especially much better a 2300 "coach" might be much worse than no coach at all.
My logic is that most people (especially on this site) are weaker than FM strength, No one stronger than an FM would hire a FM as a coach, thats just normal logic, same thing with other players of similar strength. also "strong" amateurs (2100) still could learn from an FM, because Chess.com has a different rating system from FIDE and there still is a decent gap in rating.
Welp, the rating is a hint as to who knows more. For example, there's a very high likelihood that a player rated 2300 knows more than a player rated 2100. A 1700 usually knows a lot more than a 1200. 1200 knows more than a 1000, etc. Aaaand almost everybody knows more than an 800. Just kidding about that last part.
All rated tournament games are tests that verify this. The FM title is solid proof that Mr Galofre knows his stuff and has proven it in test after test over many years.