The baiting, banter and rivalry is what makes this place fun..sometimes it can be hilarious, sometimes it's humourless dross. All part and parcel. It can be difficult to have rational debate though as you say.
Rossi is far from perfect no doubt..who is'nt? He's contentious and polarises opinion. Love or loathe the man, he adds spice and his racing credentials are second to none. He has flair.
The last year and a half have put the kybosh on his ability to pull a rabbit out the hat, apart from when it's been wet but, anyone who has ridden a bike fast in tricky conditions knows what that means..he hasn't lost his feel or touch. He's still capable. Ducati employed him for his feedback, to gain new direction with their bike and they fkin blew it.
I think going back to Yamaha is a brave move and also shows humility. He wants to try and win again. You can't blame him for that.
Could Stoner win on that bike given normal circumstances with all present and correct? I don't believe so. The fire has gone from his belly to continually put his body on the line. He has new, far more important responsibilities and simply would not be prepared to push that bike over the edge like he did before. The gap is probably too great to the Jap bikes in any case now.
The jury is out until next year on whether Rossi's tenure has been a complete disaster for his reputation. What will you say if he starts winning and mounts a challenge for the title and Ducati tread water?
Conversely, the opposite means there is nowhere to run to baby, nowhere to hide. Rossi will know that better than any of us. Expect the clowning to be filed under miscellaneous next year and a re-focussed, motivated, determined rider with a point to prove and a legacy to keep intact.
It's gonna be compelling stuff, love or loathe.