Option to remove tf2/dota2 click here to join spam in chats

[element8]

Anyone who has spent some time in steam chats has probably seen something like this:

X is now playing Dota 2. Click here to join.
Y is now playing Dota 2. Click here to join.
Z is now playing Dota 2. Click here to join.
W is now playing Dota 2. Click here to join.
U is now playing Dota 2. Click here to join.
Z is now playing Dota 2. Click here to join.
W is now playing Dota 2. Click here to join.
Y is now playing Dota 2. Click here to join.
U is now playing Dota 2. Click here to join.
V is now playing Dota 2. Click here to join.
X is now playing Dota 2. Click here to join.

Which wouldn't be that bad but most of the time even if the person is just joining a single game to play or spectate it sends anywhere from 2 to on some occasions I've seen 10+ messages. I think it might be worth looking into why most of the time there are several messages sent to chat, and give users the option to disable the messages in chat.