Why do people want solo play in an MMORPG?

[Starlord]

The tone of the OP says to me that people like me are not welcome. "Just go play offline and leave the MMO to the elite. We need a challenge and want to play with huge groups but only if you know what you are doing. We wont have these things if you insist on whining for the ability to play solo, even to a point. Solo players ruined this genre." This may be over exaggerating the actual OP but the sentiment is one i see expressed a lot when this topic is brought up.

No, I would like to have a balance of group and solo play. ( even I want to solo from time to time). I just don't want the same thing happening, where in 1.0 all I ever did majority of the time was solo ( till Primals and Dungeons came along) but even that doing that 50 times over got really old really fast. The content was hella fun, but repeating the same things throughout the year did get boring. ( and I actually did stop for 2 weeks at 1 point because of the repetitiveness.)