It's hard on the eyes, just like the infamous Wall of Text with
no capitalization or spaces or paragraphs. But mostly it's just perceived as rude and overbearing. Like dudes with 5 or 6 things in their signature...
Just teasin'... it could be a
lot worse than the sig-lines we use here. On another forum, roughly every other nitwit insists on having HUGE annoying flashing .gifs in their sig - sometimes several. Makes it a giant pain in the neck to read through a thread. Sometimes there's only 4 or 5 responses to a page because half of it is the same horrible .gifs over and over

:thumbdn: (Or at least it was like that still a few months ago... I don't really know if it still is, because I can't stand wading through all that nonsense.)
Another thing that has always bugged me is when people quote an entire post with 5 giant pics, just to say "cool pics dude". We get it. We just scrolled through them, too