I want to say this for a long time! Every time I see posters using lazy English like "u" for you, "gonna", and improper capitalization, it buys the heck out of me..

Inspirational is a typical hyperbole on the word inspiring . Someone who inspires can be said to be inspiring as is that person's work. It is typical exageration that is a common to the ill-informed or lazy English speakers, trying to impress.