Does partying in MMORPGs help you level up faster, and is it consider Speedrunning?

[LinkxPeach]

I used to party with other players in MMORPGs like MapleStory, Grand Fantasia, Dragon Saga, etc. Usually, if you hunt monsters in MMORPGs in a party. You get lesser EXP the more party members you have. But, if other players slay monsters for you. You gained some EXP.
Also, if the channels in some servers is too pack. Wouldn’t it be better to have a party, so that way you don’t have to worry about not slaying any monsters, and changing channels until you find a channel that doesn’t have some players slaying the same monsters you slaying in the same area?

[WindAtMyBack]

It depends on the game. Some try to prevent power leveling using some sort of penalty, and others don't care. I know one game where if anyone in the party is more than +5 mob level, then nobody in the party gets any exp.

One way for friends to play together without it being a power level is for the higher level player to automatically de-level while they are in the party.

I don't think that would not be considered speed running by most people. Most speed runners are solo and have practiced and memorized the run down to the smallest detail. I wouldn't have anywhere near enough patience to do it.