Today I did 7 loans to bring me up to 80 loans in 80 days (not including weekends). Coincidentally I looked at my stats and I've now given exactly 100 loans. Out of those 100 loans over 8 years it looks like I've only lost $11 due to currency conversion, and I've never looked at the risk ratings for the loans. To put money into the website you do have to convert to US funds if you're not already in US funds so there will be some fluctuation there over time, but in general this seems very similar to just holding money in a US bank account with no interest. I highly recommend it, especially for people that want to help others but don't feel they can spare the money.
As the title says this will be my final update for the near future. My plan is to keep re-lending the money I have in there and eventually have enough to do a loan a day.