Sting (not the wrestler) was a former member of the group The Police. @Garethvk was making a joke about that Sting coming to the ring and singing those hits because well his name is Sting too.

That's exactly why it should happen. With the streak out of the way, there is less of a chance of needing to guarantee the Undertaker will win as it's been for a while. The outcome can be more unpredictable. There would be the question of whether or not they would allow the Undertaker to lose again, or would Sting agree to sign up just to know he is scheduled to lose to redeem the Undertaker in a final match. Anything could happen.

who took away his streak?

Apparently that wasn't suppose to happen.
http://huzlers.com/undertak...

what ruined it for me was when the downfall of wcw started. Then WWF was all about soap opera junk with tripple H and stephanie mcmahn, shows how long ago i watched it. Pay for a PPV and majority of that hour was just talking, the shows became too much about talking. It just got so cheesy, and the new wrestlers were not exciting at all. So i just stopped watching.

I stopped watching when Goldberg left WWE. I think it was when he choreographed with Brock Lesnar. Anyway yeah its been long time and just like you, its the same reason I stopped watching it, too much talking. They would prolong the fight way too long. By the time the guy walked to the ring with his trademark entrance, then got the mic, ranted for at least 5 mins, had someone else interrupt his speech, both waiting for the crowd to shut up so they can continue talking smack to each other, well by the time you actually saw action almost an hour had passes!!

it was around this time I watched GSP vs Penn, I never looked back

"MMA ruined WWE for me"

Why? MMA and pro wrestling have nothing to do with each other. One is entertainment and the other is fighting.