Possible security issues?

[fireguywtc]

Whats up with the odd looking users which seem to be some sort of a computer program on the site. They are listed under the users online "registered users" on the bottom in a light purple color. I have seen so far Google (bot), Yahoo (bot), and Baidu (Spider). You cannot click on them like the user names, are these a security issue?

[TheEskimo]

They are web crawlers, a type of automated searching "bot" used by the search engines to read through the site, so when someone uses that particular search engine it can direct them to here if we have what they were searching for.

Pretty harmless, just don't feed them after midnight.