[pairak]

There is a gathering addon that costs 14,99EUR that works very well, fully afk-able, levels your classes, does their quests and can be set to gather any item. As far as ban rates, ive used Minion quite a bit, and while I have several toons banned it was always because of dungeon botting, never had issues with gathering or grinding. That said, like you yourself said nothing is 100% safe, but use your head and dont bot 24/7. change arround a bit what you do, do some stuff manually like obtaining titles, some non-store gear ect and that goes a long way to convince people that your not a bot. I think most people dont really care much about bots theese days as long as your not super obious (like having 8 toons with names like "asdb shdbf" always moving together on /follow).
Minion is also easy to use, there is plenty of easy to follow guides and a good support system to answer questions if ur stuck.
Hope this helps :)