Noticeable tricep formation means nothing. Muscle size != muscle strength by any measure. It's also not hard to make your muscles pop for short periods of time. If you're doing it every day I wouldn't be shocked if the "gains" you were seeing were actually just daily swelling.

30 pushups vs. doing absolutely nothing, yes you will see small results. You will also cap out in < 3 weeks at what you can gain.

Not to be a dick but please do define dramatic.