Yummy cupcake
This thread is going from bad to worse. You are judging all guys based on the story of what someone wrote on a thread in a blog which may or may not be true, and even if true, may not have been at all as described, and even if it is as described there can be numerous reasons why it would only apply to these guys.
You know that its HIGHLY unlikely that even a large minority of guys are like this. Boys in shidduchim who are 22 and up are generally mature enough and sensitive enough to know how to treat someone who is slow. Im frightened to think that anyone is actually thinking that this is typical for the way guys in their 20s behave. Get a grip on reality.