Probably, but it wouldn’t be as easy since each instance has different design, admission criteria, and access to other instances. A bot would have to be based on a given instance, so a botnest instance could be cordoned off. If it becomes a bigger issue, each instance may have their own way of dealing with it so the bot would have to be capable of not only negotiating the above obstacles but also how to get around a variety of different ant-bot measures.