Bots For Private Use and Inactive Bots

Bots For Private Use
devart
DeviantArt's system bot. It gives out every kind of badge you can get except for llama badges.
autobob1
autobob2
autobob3
Can be found as an account who automatically accepted your request to close or create a group.

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Inactive Bots
dAhub
The largest point account on deviantART. People used to give and receive llama badges, favorites, and watches through point transactions.
PageviewerBot
Buy bundles of page views with either cash or points.
Valentine-Exchange
Every year dA runs an event where you can send valentines to other users. This bot sent the anonymous valentines until 2015. [SOURCE]
TandemBot
This bot helps out with the group TandemFeatures and their chatroom #trandemf
GetLlamas-Bot
A bot that gives out llama badges to random deviants and members of llama trading groups. It's purpose is to promote GetLlamas.com and GetLlamas Both created by lordcemonur.
dATrade
Used to be a flourishing point account. Due to complaints, it became banned from receiving points.
talkbot
Created by DRSDavidSoft as a fun way for deviants to send comments to one another. It was banned because "Bot account being exploited to bypass being blocked by other members as well as to relay aggressive or insulting commentary." Talkbot will return one way or another.
A-M-A-P and MEGATRONICATRON
This account didn't originate as a bot. The owner made it into a joint point account while still being a regular account that uploaded personal journals and such. It was revived under MEGATRONICATRON temporarily.