I want to play poker with worthy opponents. I've tried a lot of venues, I don't know where to get good ones and what people would have with money. Or it's not interesting to play with the poor. Maybe you know where to play?
You are asking Online so there is no evaluation of poor and rich as long as there is a Funds to bet the gaming is cool.
Not unless you are looking for Physical Gambling in which the person infront of you either no funds or having a little.
But as long as you are here Playing with legit and reputable site there is no way that you will be needing to identify who's your opponent is.
I believe he is pertaining on the size of bet. Poor people will not enter on the higher table size in poker, With that being said, It can be easily identify the financial status of each player. I don't if OP if really serious about this topic but there are a lot of high roller table on most of the online poker site like betcoin and betnomi.