I would suggest that you give them human names, but ones that make it easy to determine what their function is. For example, you could call the statistics bot Stacey, with the first three letters hinting at the function.

For the other, you could use Serena for the word Server, or Mandy for manager.

As you add more bots to the server, and name them according to this strategy, it will give the appearance of a team of secretaries working for the server and getting things done.