After a few conversations while running my low lvl roulette on my PLD, I've found that some PS4 players who are new to the game actually say they have a really hard time typing responses to party chat using the PS4. Maybe a controller issue or something (I'm on PC so not sure). Some have said it gets annoying to them to have to use the gamepad to type responses while trying to focus on playing. So...those 'bots' might not really be bots who can't respond, but maybe new PS4 players who get irritated trying to chat using a gamepad...I know I would hate it [I hate typing my ID and PW into netflix using a TV remote...so, yeah..].