The only people that I really see complaining about the number of people they acutally see are the PvPers but is that really anything new?
Every single MMO including this one has always had it's fair number of disgrunted PvPers. WoW, Aion, Guildwars, Rift and every other game I've tried over the years. The complains and issues are so common that I view them as normal and just more of the same.