Recruiters may or may not maintain an actual blacklist of job candidates. The list can be either a document or a red flag on a candidate's profile. Sometimes recruiters may just make a mental note of a candidate with whom they want to never repeat business. Recruiters don't live in a bubble. They are human, and they can be influenced by the same things that influence everyone else. The most effective way to combat this is to have a strong profile that stands out above the rest. The profile should be unique and show off your skills and experience. You should also have a strong online presence and be active on social media. If you are a job seeker, you should be on LinkedIn and Twitter. If you are an employer, you should be on LinkedIn and Twitter.
The more you are active on social media, the more you are visible to recruit