ok, obviously you either;
1. dont know what yelping entails
2. havent heard much of any of those 3 vocalists. (excluding in flames 'stye' and 'rtr', as neither have i)
none of them yelp.
alexi laiho yelps (and other vocalists, but i thought id provide an example most would be familiar of.)
similarly i dont think any of them sound like they are on the brink of tears.
stanne sounds very sorrowful and vacant
anders changes his vocals from album to album, so its hard to really define his sound
lindberg sounds grievous, tormented, and bitter.
but they all posses a certain strength to their angst. not weakness, or defeatist.
anyhow, stop throwing your pride on the line for the magical mushroom. i dont care. if you are going to take my dislike for him so personally you are a fool.