I've been posting hundreds of pics around the net for many years and nobody's ever complained before..
Incidentally it seems the Gamesquad big boss (whoever he is) has set the forum software to display pics at a maximum of 800 pixels wide, but i'd recommend a setting of 1200 wide like most other forums.
Nowadays most people use 22" or 28" monitors, which means a tiny 800 pic sits in the middle of their screen surrounded by lots of wasted empty space, whereas a 1200 pic would almost fill the screen and blow their socks off.
I also see GS has the post title bars and avatar in the lefthand margin of the screen taking up valuable display space. none of my bizness but title bars are better if the big boss positioned them across the top of each post, for example here's how mine used to look when i was a member of another club-