Starting from weeks ago, there were two strange bug reports about Simple Gmail Notes. Bug reports of this extension were actually not rare, there were users complaining about various items from time to time.
However, those reports were a bit unusual, the users claimed their Gmail accounts were temporarily locked by Google because of excessive network requests, and they believed this extension was the culprit.
I was shocked at first, as it was a very serious charge. I carefully inspected my code, checked all possible places with network requests. Nothing suspicious was found. And according to my calculation, there was no way for the extension to perform endless network requests.
So after some further investigations, I concluded that they might be just false alarms.