I am sure some will have great things to say about Gab but Torba had to do the same thing on his platform.  He doesn't get the advertising dollars and mainly is supported by his users but the bots got so bad posting media he couldn't keep up with the storage costs and he had to start having people buy subscriptions to post media or use third party sites and link it.  Bots are obviously used for different purposes by different groups to achieve a goal.