Personally, I ignored all welcome messages that appeared to be bots or copy + paste replies (Sorry @brittandjosie lol) when I joined. Now, that may have been to my detriment on this platform, since RC, VP, ETC are all foreign concepts to a blogging/social media platforms, but it happened. And I'm going to bet it happens a lot.

Nobody likes spam, and I don't think that spam makes the platform look good.