This is something you see with a lot of Jr. and Aerospray users, and the game encourages it. You gain points by painting the floor, not by splatting foes and holding important positions, and the end result screen ranks the players by the amount of points they get. Jr. and Aerospray are good at spreading ink, so they naturally get the highest point total, even if (I said if, my dear Jr. and Aerospray using friends) they immediately lose the terrain they just covered, thus contributing absolutely nothing. Unfortunately, many people measure their contribution by what the scoreboard says, making the Jr. and Aerospray a disproportionately popular choice online.One thing I´m seeing is that a lot of people won´t use your ink lines to reach the important points faster at the beginning. Instead, more and more people are using their time painting ground before heading there so when they do they have their special ready :( Also, I hate it when I paint half a corridor, strafe to paint the other half in a shot and a happy Splatter Jr. of my own team runs though the corridor painting it himself, instead of using my corridor to advance faster and let me take care of what´s left.
Combine this with the fact that, outside of their specials, Jr. and Aerospray are actually pretty bad at direct confrontations, you get a whole lot of point-hogging clowns that paint everything in sight, but are skittish when it comes to challenging the opposition and actually getting sh*t done.
...Did I go off-topic somewhere in there? I think I did. Eh, still gonna post.