Originally Posted by
sen
That ~original trick wont work for long, but it'll give you time to rehost the images. It just tricks their URL detection into thinking it's not a direct link to a .jpg, but as soon as enough people do it and it shows up in their logs, they'll fix it.
Rehosting to imgur is your best bet for now, but they've also shown they're desperate for money and trying various user-hostile tactics lately.
Trusting some random company to look after your images forever for free was never going to last. The only truly future-proof way to protect forum images is for forums to host their own images. It's not expensive/hard anymore, it just requires customising the forums a bit.