Mods must follow the same TOS as everyone else, and are expected to remove posts that violate TOS.
Keep in mind, most boards have 6 mods that can remove posts. Admin and Mod Squad also may remove posts, so you can't assume 1 moderator is responsible for all the deletions.
You can appeal deletes by mods via the "Request Review" option at "My Removed Posts". ===========================
"...Is a mod not required to be fair and unbiased when assessing all messages for TOS content and not just delete pro-company messages? ..."