[@Mahz]: 
The hugetext seems to have come (and gone?) with the force device width feature. The force device width option still exists on my profile, but it doesn't appear to do anything anymore; I see the desktop version either way now ("Desktop version" is not enabled from browser).

The smalltext I first encountered on RPG earlier today, I think...  I have seen it on other sites, however, so it is not entirely Guild-specific. Smalltext in posts seemingly only occurs with very short posts.

Using Firefox (both latest 37 Beta and 35 stable release give the same result) and Android. 

Checking further...
 - Chrome 40 doesn't have smalltext bug.
 - The native browser (Samsung's? where is this thing's version info?) doesn't have smalltext, either, but holy white buttons...