People complain that they submit reports, but the messages they receive say that no violation was found.

Let's explain a bit about this situation:
You may not receive a report that a violation was found, but your report helped in the process. For example, the first 100 reporters might receive a message that "no violation was found," but the 101st (for instance) might receive a message that a violation was found and the offender was banned.

In this way, only one person will see the positive report.
However, sometimes several reporters will receive a positive message, which happens when manual moderation is conducted or community explanations are requested—there are many nuances.

Therefore, we have created a Report button, a yellow exclamation mark in a triangle, and we notify everyone who participated in a successful ban via email and push notifications.

Keep reporting and believe in yourself!