Why so much hate for job/class ideas?

[Julienne]

It seems to me that when someone throws out a new idea for a job or class, spends a great deal of time fleshing out their idea, and obviously worked really hard on it, they should be given constructive criticism. Instead, all I see are people saying,

"Terrible"

"This idea sucks"

"This will never happen because reasons"

Way to discourage the creative mind, people. If you don't have something nice to say, don't say it at all.