Please don’t mention directly people only for the sake of getting more attention. I know you said sorry, but still The mentioning feature is here to help organize/structure discussions, if it’s abused then it may be disabled altogether.
To your initial question here:
Generally speaking it’s best to first manage exclusions via the UI. That allows a clear definition and tracking under the project settings, and can then be fine-tuned if needed.
In order to then troubleshoot why exclusion settings would not be working, a good approach is to leverage the debug logs of the analysis, and use the approach described here: