Has the accuracy of the snapshots actually changed based on this edit? After all, if it's factual information being presented...
I do agree that it raises the issue of what other modifications there may be, and it IS childish, but so is going after a person who provides a good service and wants to remain anonymous while doing so.
All I'm saying is that while I do not agree with the actions, I also am not saying I don't understand the reasoning behind.