I was trying to stay silent but I will leave my opinion here in my topic.
Trading is VERY VERY difficult ...
Much more than selling EAs and video-courses.
If you are seller and not a trader you have to avoid places where a trackrecord is analyzed carefully by true traders or experienced investors.
It is much better to stay on facebook youtube or on your blog where you can delete unpleasant comments.
This kind of things make me trust even more my filter, a community of traders is a powerful indicator, even more efficient than DScore.