Part of me thinks it's just Jeremy Renner fangirls (does he have fangirls?) looking for a slash pairing, and Coulson's pretty much the only one Clint acknowledged onscreen for a while, ergo Clint/Coulson?

I do kind of want to hit them all with that blooper reel and go LOOK! THEIR LOVE. FOR REALS. IF YOU'RE GOING TO WRITE SLASH AT LEAST ACKNOWLEDGE THIS THING RIGHT HERE.

Hawkeye on SHIELD would be hilarious, especially if they poked sticks at the Clint/Coulson thing by implying some sort of tryst between Clint and Ward or something.