If you are an approved Educator (you have to apply and then make it through a training period first), then yes, you are eligible to earn points, badges, and money for contributing answers to eNotes. Educators who are accepted to the program usually come from an academic background (e.g., current or former professors/teachers or professional writers) and often have several years of teaching experience.
How much you make depends on the types of questions you answer. Questions range in price, with the lowest questions being $5 and the highest being $37. You can also earn bonuses for particularly thorough responses.
Every post you submit is reviewed by the eNotes editorial staff for accuracy and sentence-level errors. Your answers may be taken down and earnings revoked if your work does not meet the site's quality standards. You have to carefully follow the guidelines laid out for Educators, which include things like producing content that is error-free and avoiding doing student's assignments for them.
eNotes sends out a check to you after the 15th of each month once you have reached $100 or higher.
If you are interested, you can apply here.