Most bots are BLM (THM + ARC as in the second pic you posted.) No, you don't have to do MSQ (join GC) for some dungeons, like the bot-favorite WP. All they have to do is level to 50 which they usually do by bot-farming sprites (drop shards) in the open world.

How that one got SMN without THM is beyone me, though.

Also, it's not a good idea to post pics with characters names. SE works hard to protect bots... I mean, people.