Does anyone know of any bots that are good at sending one-on-one messages to LinkedIn group members? In particular, are any such bots good at staying within the unwritten rules that are likely to get LinkedIn accounts restricted? For example, a good bot should limit how many messages are sent per account per day, have time delays between messages, limit total daily page views per account, and many other things. Any bot that doesn't take these types of things into account will just wind up getting accounts banned. Which bots would you suggest?