As many MMORPG.com users know, soloing is by far the most popular activity in an MMO. Even games like League of Legend or Call of Duty you can pretend the players are bots and never talk to anyone at all. Same with WoW, most of the raids you can pretend are just AI playing alongside you and never interact with people at all. This is one reason (of many) WoW became so successful, because even vanilla allowed a soloers game.
Of course, this may be a controversial topic because while many MMORPG.com users know soloing is by far the most popular activity, there is a lot of oldschool gamers here.
But a great example is Vanguard. The problem was, population past low levels (mid game) became VERY scarce. Even low levels eventually became scarce. Anyone trying the game couldn't solo anything because the vast majority of content was group focused, but there was barely anyone to group with, making people leave the game. Its not a problem early on, but for new players as the game ages, its a big problem.
So that leaves the question. How will Pantheon be for the solo players?
My Skyrim, Fallout 4, Starbound and WoW + other game mods at MODDB: