That image is 3 years old.
Memes have their time, then they fade. Just because they faded doesn’t mean we go back and delete them.
All of your images are "exploitable memes" or image macros that could arguably be deleted for Rule #3 – but if they aren’t reported or noticed then we don’t pay much attention to them.
Basically, you’re taking screencaps and adding text to them, making them an image macro. If they are very much in keeping with the fandom then we host them, and we host a lot of image macros and exploitable memes.
But we also delete a lot of them, especially if there’s already a lot of images just like it, or if the text on the image is so far removed from the fandom so that it’s just a pony with some text on it. Or, if you upload too many of them at one time, so that your image macros are the majority of a page and people start asking us to do something because you’re pushing artist’s images off of the front page.
So, just please make sure that your images are related to the fandom in a way other than that there is a pony in the image, and space out your uploads enough so that you are not pushing artists off of the front page, and it should be fine.