Majority of effort appears to be on the fraud prevention and risk management rather than collection and recoveries. The quest to increase originations and revenue will trump any such risk management attempts, like what happened with banks issuing mortgages to unqualified borrowers in order to boost their own bottom lines.
It takes a while before such trends start to become apparent and show impact on bottom line of the investors so I don't expect investors to react swiftly before it is too late. These are illiquid investments with limited liquidity so the existing investors' funds are stuck until loans fully mature. Platforms are doing their best to prevent secondary market from taking hold. Stopping new fund inflow is the only lever most investors have. In such situations, platform will do the same as what Prosper did in the past, abandon Prosper 1.0 and re-introduce as "better improved" Prosper 2.0, or what Lending Club did, claim the earlier loans don't meet current credit policies and exclude them from track record.
"Not having skin in the game" has become an important risk with such platforms, incentives are no longer aligned and are at odds between the platforms and the investors who are bearing all the risk. Without having some sort of risk-mitigation mechanism for investors there will be lot of hurt when things go sour. Personally I believe anyone investing more than 10% of their portfolio in such platforms should reconsider the exposure.