Lotro has just gotten so dull, Moria was okay but pretty much every patch following the release was nerfing content across the board, from fellowship requiring quests in bree or anywhere else up to a huge portion of Moria content. It's become so so tame that it's basically a joke now. For the first what 2 years all the new content was difficult/worthwhile, but now they've nerfed all the old content and all the new content is pre-nerfed.
The thing that really irks me about the book quests is not that they are solo-able now, it's that they are so awful.
Again up to moria most of the book content was brilliant, both in terms of story/going around finding actual real clues like finding the dark rider in Trollshaws, to the instances, they were difficult and with real fights with exceedingly rare instances like seeing off the fellowship in Rivendell.
Now every other instance is sitting around watching people.... talk, the instances like the Angmar ones, even solo, are mostly awesome(though could be harder and a real challenge with actual chances of dying). THe vast majority of book instances now are awful, boring, no challenge, no fighting, short, uninspired. Crap stories, meaningless guff.
They turned a really really great MMO into an absolute pile of turd. These days I buy a new expansion, play for a week, level one character, get bored to tears and give up. I have no interest in great equipment now, hell from what little I could tell there isn't even high end kit in the latest expansion, well second age's easier to get than ever at max level, but no armour at all, and a seemingly entirely pointless end game battle system, that while interesting the first time, is quickly realised that it's painfully easy and also quickly realised that the rewards are crap, pointless and with no real given reason for leveling up the reason to repeat them is just not there.
The really irritating thing is, I used to enjoy re-rolling because starter area's up to end of Angmar was brilliant.... then they nerfed everything and it's so easy and boring now it's worthless. Some of the changes are good, better quest giving locations with less insane running back and forth, but when the difficulty got nerfed everywhere for all content, it just became so dull.