I know there are many people on this server including me who dislike that Mojang put in the cool downs for weapons and for a good reason. It just turns even pvp fights with the best gear into a grind fest waiting for who's armor is going to break first. Fights used to be faster, required faster reaction time, and you needed to know how to pot with splash potions. With the cool downs thought its to people hitting each other and occasionally eating some food and repotting strength.
There are also countless 1.9/1.10 pvp servers or mini game pvp servers that turned off the cool down that have quite a large player base.
In the end it is up to Crafty to make the final decision but I would encourage you to post your thoughts below defending no cool down or keep the cool down.
I will also include this link to a poll so that you can vote there http://www.strawpoll.me/10644060
Well someone decided to rig the poll but before that the vote was 16 wanted the cool down 5 didn't want it and even this result might have been rigged