I don't see how it's extreme if it's what's called for in the rules. The mods have guidelines to follow on what things are worth infractions, and how many points, etc. Although, the rule on it is a little fuzzy:
^^ That is the only one that comes close, and is considered a 2nd Degree Violation. I can't actually see anything in the official Rules that specifically addresses sources.Posting copyrighted content without permisson.
As for the thread being deleted, that's covered in this thread, which has been stickied in the Photo forums since last September.
For legal reasons photo threads not giving the source will be deleted.Another reminder to let you all know that you need to credit the source of your pix. Your photo thread will have to await approval until the title format, date and the source are checked by a mod. If these criteria are not met, your thread may be deleted (esp for the lack of source due to legal issues...)