I think 2 active loan limit is fair. Recently got burned pretty bad by someone with the username "user3984". Basically lost all the profit iv made and am now in the red.  This guy has like 31 repaid loans, but also has 19 that are currently active, and now half are overdue and he seems to have just peaced out with the money. Seems like he spent quite a bit of time building up loan rep then took out a whole bunch of smaller loans over time to make it not so suspicious.

If users were limited by the amount of loans to take out it could help get rid of this problem. Maybe have it so you can only have one "in funding" at a time, and max 2 active at a time.