Why ys thys sy fynny

From Wiki Gonzalez

While opinions vary on the value of replacing every vowel with "Y", the practice originated in the IRC chat of Game 4 of the 2003 World Series on October 22, 2003. (Edit: This practice obviously dates from at least Lynyrd Skynyrd's 1973 debut album, Pronounced Leh'-nerd Skin'-nerd)

Dan Werr, in a discussion about musician Alison Krauss, misspelled her name as "Allison" before adding:

22:38 < DanWerr> Er, I guess it's Alison

22:38 < DanWerr> Which is the loser spelling

Indicating a preference for the more common two-L spelling.

Dan Szymborski replied:

22:38 <@DSzymborski> you're only cool when you spell vowels as y's

And a trend was born that was so popular that it lasted throughout part of the evening, culminating in Szymborski's posting of this transaction (http://www.baseballthinkfactory.org/files/primer/blogpen_discussion/syn_fryncyscy_gyynts/) in his Transaction Oracle:

Syn Fryncyscy Gyynts

Dyclynyd thy 2004 yptyyn yn YF Jysy Cryz

In which Dan Werr attempted to clarify:

Yll y'm syyyng ys yllysyn shyyld hyvy twy ls. Ynd ny ys!