Last time I removed the post image hosting for the same reason there was an uproar.
I would prefer if everyone used their own image hosting that was free of ads, but most people rather just resort to post image because of the ease of use and integration.
Please note that post image is not affiliated with this forum in any way, and it's just a link we added to allow for easy image posting because most members do not know how to post from their own hosting.
If you look at my posts, such as :
http://tropicalfruitforum.com/index.php?topic=18387.0 you will see that I am using post image, but I have the image directly displayed instead of having to be clicked on.