Regarding blading -- well, blood isn't fake. Yes, blading produces blood to make it appear that the wrestler was injured from a spot, but hey . . . unless a wrestler is using blood capsules or a blood patch (to produce fake blood), blading is blading -- real blood, so a real (but planned) injury. Blading causes scarring -- you can't fake that.
And, even though wrestlers are trained to take falls, even the best bumps cause some damage -- just not as much as the wrestler lets on. Getting slammed on your back, night by night, for a good part of the year, causes damage.
Sometimes, botches will cause major damage, of course.
The thing is -- you can't fake falling off a cage or even being bodyslammed. Yes, you can minimize the impact by learning how to properly fall . . . but even so, falling is falling and you get hurt. This is why wrestlers tend to get more injured the longer they stay in the business . . . and why it takes longer to heal. The body can only take so much for so long.
Yes, wrestling is scripted and much of the fighting is choreographed, but wrestlers are like stuntmen -- they are trained to do the stunt, but they still have to do it in front of a live audience. There are lots of risks involved, and even in the best situation, they get hurt. Even when they do it correctly, they still have to incur some damage to their bodies, which over time DOES take its toll.
Respect wrestlers and what they do. They damage their bodies for our entertainment, and they take risks so we feel we got our money's worth. Many of them will have permanent injuries and pain when they retire -- just so we can go "wow" when we watch. They deserve credit as athletes and entertainers.