While I'm not looking right now, here are some from my job search earlier this year:
Sending out emails that don't match the skill set of the recipient. For example, sending a DBA emails about front end dev jobs.
Asking for advanced degrees when it obviously isn't necessary for the job (this means this is a low paying contract job specifically for a H1B contractor).
Asking about visa status (another H1B contract job tell).
Asking for private information like passport or social security numbers up front (no, just no).
While I'm not looking right now, here are some from my job search earlier this year:
Sending out emails that don't match the skill set of the recipient. For example, sending a DBA emails about front end dev jobs.
Asking for advanced degrees when it obviously isn't necessary for the job (this means this is a low paying contract job specifically for a H1B contractor).
Asking about visa status (another H1B contract job tell).
Asking for private information like passport or social security numbers up front (no, just no).
Buzzword bingo recruiting ("Java ninja", "TDD Rockstar", etc)
Asking for unlikely combos of experience, such as someone who is an expert in Oracle, embedded systems and web front ends.
Asking for unrealistic experience, such as someone who has 5+ years experience in a framework or technology that was released less than 5 years ago.
The worst though are recruiters who do send you well targeted emails that you respond to but they ignore you and keep sending you more job listings.