False impression?

Do we get a false impression of avg cock size because only hung guys have the balls to post a dick pic?
Yes, hung guys will probably be more willing to be seen, but I think AI and Photoshop, and overall photo trickery in the porn industry also contribute.
 
I think average guys are not afraid to show, maybe not so much for the below average guys.
So if you average out the average and the hung size you see, you will get a false impression of what's the average size.