i would like to just maintain the style of past Community Tile Projects with the image in the first post updated instead of having it somewhere in the body of the thread posted multiple times at different stages.
well the problem with most image hosts generate some sorta url because they have to deal with alot of names. even DA does some sorta random number at the end of the url...best thing I could think of is to go with tinyur as KentyDK suggested...or go through a list of sites and see if any fit your needs
Another (albeit slightly overkill) solution would be to use Dropbox, which can do exactly what you want, as long as you just keep changing the same base file.
Granted, installing Dropbox just for this seems somewhat unnecessary, but it's an option either way.