It's not hyperbole. Find me a worse trade. I can't think of one. Hyperbole would be like if I compared it to the plague or something.
Some trade has to be the worst and I think this is a candidate.
In your last post, you said that this trade reflects a fundamental misunderstanding of dealing. You do understand that Ainge is well aware that this makes this team worse, right? Or that not every deal is made to make both teams better immediately? What this trade does demonstrate is that the team has a very good fundamental understanding of the business of the NBA.
Oh and to answer your challenge...
Celtics
1.) Look up the Vin Baker trade, how did that work out for the Celtics?
2.) The Joe Johnson trade
3.) The Chauncey Billups trade
4.) Danny Ainge for Joe Kleine and Ed Pinckney
Red Sox
1.) Babe Ruth
2.) Jeff Bagwell for Larry Andersen
Bruins
1.) The Joe Thornton trade
That literally took me 45 seconds to think of those. I'm sure I could come up with more.