I did a siege camp only 2 other people, took forever. I really hope they do something about it. WoW scales raids and stuff why can't the devs do the same thing?
Some of those banner bearer/sweeper style minibosses really wreck shop. But then again people were complaining overland is too easy. I think they should be toned down some though, until there is an opt in for harder difficulty. The average small group of 2-3 casual players are going to get wrecked trying to do those camp quests.
Yes, I decided to solo the main camp because it was active and I was too lazy to ride to the active one that was farther away. I did all the soul reapers and was 3/4 done with the first of the two main bosses when another player that was laying dead in the middle of the camp for the whole time I was there decided to resurrect themselves and joined. The time it took definitely not worth the reward.
Unless they scale them down I do not see myself every trying to solo them again.