This thread exists because someone can't find other players in open and is wondering why.How things get turned around. This whole thread exists because someone doesn't like people playing in Solo (check the title). Now we're selfish if we won't.
One of the explanations given was that gankers killed open by pushing everyone else into solo (or PG).
But this is clearly not true. Despite the split between clients 3.8 and 4.0 it is still easy to find other players. When I go to a known hotspot or a CG system, I frequently drop into instances of 10 players or more.
So what's the problem? Why do some people perceive the game as empty?
It could be due to network issues. However, if you're able to instance with one player, you can instance with ten as well. The network isn't stopping you.
Something else is. And that thing could be your blocklist or the blocklist of a player next to you.
It's important to understand what the block function does. It doesn't really block the ganker, it blocks you from entering any instance the ganker is in. The longer your blocklist is, the more likely the game will spawn a segregated instance just for you. While that may be exactly what you want, it may not be what the next player entering your instance wants.
Protip #1: If you want to instance with as many players as possible, keep your blocklist empty!
Protip #2: If you enter a hotspot or CG system but see only one player although your blocklist is empty, the other player's blocklist may be the problem. In that case try this: temporarily block that other player, then re-instance. This will likely put you into one of the more populated instances that the anti-social player is excluding themselves from.