Is This New?
 

Attachment 23362
Just sitting here on graal and got this

I never saw this notification b4

Got the same thing. Maybe to check for botting, or just people afk. Got 2 of these messages in 5-10 mins.

http://i.imgur.com/i0YBcek.jpg

Low key creepy af

Looks like a pretty basic automated anti-bot farming measure similar to how the new reconnect screen has the "Reconnect" text bouncing around

These voices you hear...

looks like Graaloween came early this year

Spoopy

I just got this message as well while idling in Sw@nk's GST hat museum, so I guess it isn't triggered by any bot-like behavior

If it is some form of anti-bot, it's easily countered. A color detector bot is the counter: If distinct shade of purple appears on screen, click at position x,y (yes). And if the menu position is not static, you could just use a picture of the menu to tell the bot to click directly where the yes is. Color detection bots can also detect images.

It's not just purple, it cycles through many different colours.

You could set up the bot to check for all editions of the menu. It's easy because there aren't many items that are transparent like that menu and generally the only color bots see other than the green grass is whatever the gralats are colored.

EDIT:
Don't make the menu solid, either, as that would make it too easy. I can see how, if this is actually something for anti-bot, the design of the menu is meant to counter bots.

It also appears that the "yes" button shifts places as well

easily bypassable :)