How often does the "Hip and Happening" dude (in Ruby and Sapphire) accept your trend and it becomes the new thing?

Question

If you don't know what I'm talking about:
http://bulbapedia.bulbagarden.net/wiki/Trendy_phrase

Answer 1

The trend seems to go on for as many times as you want. He accepts your trend everytime, so one can change the trend an indefinite number of times.

Hope I helped!