How do you not see all the image dimensions in the filter rules? Picking just the those mentioned I tried 'grep 300x250 easylist.txt' and got 478 results!
Many are very specific and look like useful filters, but here are just a small sample of rules that are problematic:
-300x250-
-300x250_
.300x250.
.300x250_
/300x250-
/300x250.
/300x250/
I wasn't up to speed on the lists business. I will look into using a different list. I was just using adblock now and then at the default settings, I installed it and haven't touched settings.
I don't use it all the time because I don't want it interfering with testing and dev, messing with the document.
When it backfires and hides stuff you've just published, suddenly I'm cursing adblock because I know other default adblock users won't see the image.
I've never noticed that with EasyList.
Edit: Quick optical grep confirms it, nothing to match image dimensions I could see in the filter rules.