Baton pass? Sure, I'll contribute. These have been, at least on the higher end of the scale, more common ever since swagplay was banned (thank you).I think them to be a problem, but perhaps not in the way most people think. May I turn your attention to some personal experience. which I believe illustrates the problem of Baton Pass teams?
----------
One day after I had gotten my work done, I decided to play PS! because I had some free time. Just for the databook, my first rating was around 1700 (I really don't care much about ratings so forgive me if I can't name it). Now, I believe smogon was having a slow day or something, because I kept seeing the same guys over and over again. One of these was a baton pass team.
I tried my best to defeat him by using clever switching and predicting his own switches, but it wasn't enough and I lost about 3-0 to him. Now, this had been maybe the fifth baton pass team that I had lost to in the last 2-3 days, and my record for non baton pass team beating was near flawless. Deducing this as a problem, I decided to put Deoxys S with Taunt and Dark Pulse to both counter Scolepede and Espeon at once. Or if it didn't, I'd pick something else- either way I was testing it and here is what happened:
I ran into the same guy with the same BP team. This time I led with Deo S and used Taunt, to which he protected. I used taunt again, and he was not fast enough to baton pass, so his scolipede became afflicted with the taunt condition.
He forfeited immediately.
---------------
So what does my story have to do with anything? Well, I have seen many people arguing in this thread about whether baton pass is easy to counter or not. So is baton pass easy to counter? Yes. Is baton pass hard to counter? Yes.
From my experience of dealing with this since gen 4(3?) back when I had Haze Milotic, Baton Pass is incredibly easy to deal with if you have a solid counter to it. However if not, there is almost a 90% certainty you will lose. Thus, baton pass is both easy and hard to counter at the same time. This is the first problem of BP.
But now let's go back to the other important claim of baton passing: that it, like swagplay, requires little to no skill involved in order to defeat other teams, possibly of much higher skill than your own. The answer to that I believe is a resounding yes. That person I mentioned I battled? He had an espeon (all BP teams run one), and since he knew I was going to taunt he could have switched to it, taunted myself, and then would have won when I had to switch Deo S out. He clearly had no idea what speed tier his scolipede was in, and thus he made a critical error and had to forfeit apparently.
I had lost against this man before putting Deoxys S on my team. Think about that.
Baton passing is such a skill less strategy that something must be done about it, else we accept the fact that those who worked far less hard than you for wins get them more often than yourself. So I suppose I had better put my own opinion on what to do, since I have already written this much.
Should baton pass be banned? No, as many have pointed out, it has its uses outside of full on BP teams.
Should Scolipede/Espeon with Baton Pass be banned? Close, but no. These are team players, and have to rely on a full team in order to be deadly. Without these full teams they are not anywhere near broken.
Personally I think the solution to this problem is to limit the amount of pokemon with baton pass to 2-3 users. This would allow for dry passing and quick passing while simultaneously not allowing for the full on BP teams to take less skill from the meta. However! This solution comes with another effect: It will force the baton pass teams to get more creative. Remember how I said BP teams were skill less? Well now you can have only three. Which three do you pick? What moves? Suddenly these teams gain a lot more skill to be able to be used effectively.
That's all I have to say for now.