Why do so many people solo on P99?

[Bardp1999]

1/2 the classes in EQ are irrelevant XP leeachers in most situations. In any high-end zone, even in a full group, the enchanter/necro is basically trioing with the cleric and puller and has 3 other shit bags taking his XP. After 20 years of EQ the secret is out and people want to maximize the grind (and its a long grind on P99) so you see a lot of solo/duo/trio