OP - it’s an interesting subject you have chosen here.
But as with all numbers - “there are lies , lies and statistics “ or in 21st century parlance “ AI slop analysis”.
Most of us seasoned members realise that judicious research of a prospect and her reviews is the best safeguard to avoid a poor punt - but it ain’t failsafe. The past is no predictor of the future as they say about share picking.
When it comes to taking a pure ( aka blind) punt on a new arrival - for me, nationality is probably one of the main filters - no Roms, no Brazilians ( even the hot ones) - but the rest are fair game ( although I’m wary of Bulgarians & Hungarians for some reason. 🤷🏻♂️
All of which makes me ( and anyone of a similar school of analysis) a racist I guess. Which I’m not.
But no politics here.
