In my opinion it is too early to tell what the impact will be. Essentially DT increased the price by approx 30-50% for the buyers. They may absorb this like nothing happened or they may leave. We don't see yet what they are doing. I am sure many buyers had credits that they need to spend. Even if they want to leave they will not get a refund. So they still buy until all credits are spent. The big question is if anybody is buying new credits since the price increase. Time will tell.
For me May was a very good month regarding earnings. More average regarding sales.
I also had a very good month in terms of revenue and RPD - BME in fact, but sales by number have been decreasing steadily over the last few months. I agree with Gmargittai's analysis that it's still early days to see the trend.
I buy images every month and from a buyers point of view I realy don't care about the new price. I buy images I need and my customers pay for them anyway. I think most of the buyers are advertising agencys like me and who cares about one $ more in a small amount?!? Its not like prices for stock are big anyway. So paying 10 credits one day and 14 the next is not a big deal I would think? And my earnings were pretty good last month but I also think it is to soon to tell.