Blood has been a staple of professional wrestling since even before I became a fan. It has been an enhancement to many matches that were already great to begin with. Guys that never needed to "blade" did it and it somehow made their matches even more compelling to watch.
It also became something that was overdone throughout the years. Everyone started bleeding during a lot of meaningless matches and made something that was special into a cliché that most people got tired of. Hell, I expected Ric Flair to bleed while walking to the ring.
It's a new era now in the biggest company in the world. WWE has somewhat successfully taken its in-your-face, shameless approach to pro wrestling that it had during the Attitude Era and turned it into a PG spectacle that it's still going pretty strong today. Sadly for older wrestling fans, the element of blood has been almost completely removed from the product, with the glaring exception of John Cena vs. Brock Lesnar during the build up and their match at Extreme Rules (where the element of blood was used perfectly). Other times they have halted matches to stop one of the competitors from bleeding since it is not fit for the product and the audience it caters to. The last incident was during a Smackdown house show just this past weekend where a match between Jinder Mahal and Ryback was stopped because the latter had a cut on his head.
I have heard a ton of complaining about WWE's no blood policy and most people I have read have something negative to say about it. Personally, I don't mind the lack of blood. It was being used as a crutch to make meaningless matches seem brutal. It just made the wrestling take a backseat to the brutality of the spectacle.
As a fan of good wrestling matches and good storytelling I want WWE's no blood policy to become part of the storylines. Have a big named wrestler get busted open and get their match stopped by a doctor trying to cover the wound. It will give bad guys bragging rights and it will give the good guys a reason to rematch them. With so much TV time to fill, anything that can logically continue a story is a good thing, even if we don't get the blood that turned many wrestling matches into must watch classics.