An anecdotal is using personal experience and ignoring the statistics.

Why don't you show me the statistics backing up your claim that you pulled out of....nowhere.

If you had posted actual instances where USCIS ignored Service Requests, and I had said that I made a Service Request and it worked, that would be an anecdotal. Learn what the word means before you use it.

If you fail to show the statistics, what you said is in fact an anecdotal considering the fact that many people have done Service Requests and have been answered.