You say autotyper, everyone else says, chatbox spambot. Why not put your skills into something less abusive? In theory this could create a DDOS attack against that website, dangerous.
Ive spoken with admins around different exchanges and IRC chats and while they agree auto typers are annoying theres not much that can be done about them and as long as mine isnt malicious i dont have much to worry about other than South Park suing me for the use of their characters in my icons. This cannot DDoS a website it just doesnt have the power it would take thousands of these spread out across multiple networks aimed at the same forum at the same time and activated at exactly the same time and even after all that im pretty sure most websites would just exp a tiny bit of lag if anything.
There are enough free ones out there like rsclient.
Yes there are and 99.999% of them have some sort of R.A.T or backdoor placed within them. I know this for a fact because I've been down this road before hence why I started making my own.