when i looked at the cato edit it was simply a removal of the reference the addition of another donor and a change in the language without an edit summary to explain the changes were unjustified your clarification certainly helps thanks also for adding the reference on summers frankly i did not look at the sources removed or added my main concern was the unexplained edits summaries are important and then i saw that the messages about these same concerns from a while back so my message is more of a reminder most importantly you are incorrect if you think it is not against the rules to add unsourced material one of the core content policies is wp v and wp rs allows us to carry out that policy happy editing