er, he's responding to Mark Cuban's public statements. If Person X says A, it's not exactly unreasonable to write an article titled "Why Person X is wrong about A," even if you have a business that involves A. Like Cuban, the author of the blog post clearly has a point of view on the subject, and we can all evaluate their competing arguments.

I think I would probably talk to my mother before writing a blog post publicly disagreeing with her, but I just don't see what's so insulting about disagreeing with Mark Cuban's own public statements.