User:KolbertBot

This user is a bot run by Jon Kolbert (talk). It is used for helping to make many small changes that would take a long time for a person to do alone. Administrators: if this bot isn't working right or is doing bad things, please stop it.

This bot changes certain HTTP external links to HTTP Secure. The migration to HTTPS is for security purposes, as it helps protect data integrity and user privacy.

Here's a post from Google Developers' writer Kayce Basques which explains a bit more about the issue. Why HTTPS Matters.