So I've been noticing this a lot lately where an image inspected outside the forums will report under (sometimes well under) the 500k limit, then when it's hotlinked here, it bloats up by an additional 100-300k.
Here's a good example:http://i.imgur.com/uBrDIhJ.gifv
If you open this outside of the forums, it's just under the 500k limit.
If I were to hotlink it inside the forums, it's mid 600s.
not a doctor, not a lawyer, examples I use may not be fully researched so don't take out of context plz, don't @ me