Hey you're welcome to disagree @daudimitch. I didn't accuse it of being spam but I happen to think your evaluation of the value created by those actions is flawed.
There is no need to develop a 'system' - A pretty decent system already exists where real users greet new users.
I don't spend much time welcoming newbies on Steemit any more, I've built connections and so naturally there's less time.
I do, however, spend time in the #help feed to assist newbies & spend time in the chat offering assistance when needed. I do it to help, not in the hopes I'll get an upvote.
If a bot could do that, I'd happily upvote it all day.