Well, dear the rule is pretty much simple - You cannot post another answer if one or more answer is already present in a thread.
There isn't shortage of threads with zero answers. There are about 8k such threads present in General Discussion section itself + On an average at least 900+ fresh threads are added across all the sections every week.
Your answers are against the EALP guidelines - ealp.com/guidelines
Violation guideline no. 2: A good amount of your answers was found containing copied content from other websites like- Quora, Wiki, other education portals, etc. Copying of content is something which is strictly unacceptable and leads to deletion of the answer.
Violation guideline no. 14: As per this guideline, no individual is allowed to post answers in those threads which contain one or more answers in it.
If you can take care of these errors and follow up all the guidelines of EALP properly, then we would be happy enough to consider that effort for some increment.