If I am the one that’s looking for a trader to work with, I don’t think I would be looking for one online, I’d prefer to look around me for someone that knows how to trade and then work with them, that way I would be more safe than when I’m working with someone that I don’t know, someone that I just met online, what if something happens?
Anyway, there are still people here who can be trusted, you should check the trust rating of whoever you choose to work with, to know if they are good or not. Then avoid newbies as the other forum members have said because there are scammers that are always creating lots of new accounts to use against people that are aware of it.
The search would be much more faster if they do look and post publicly and yes theres always a high chance to meet up lots of scammers whom do pretend that they are pro's on this field.
Its up to that individual or seeker if he would set out criteria that would fit out his standards. Honestly, why would a profitable trader would look for some partnership?
Expanding his capital? Not enough reason if i were to say yet if you are that good enough you wont really need those things and would just trade for yourself.