So many guilds on so many markets and so many servers are accused for using GvG bots for years now. And not a trace of such a bot is to find anywhere.
I don't say such a bot might not exist. I just say that such a bot would be findable on specific websites. And no, I do not believe every accused guild has an experienced web developer to build a GvG bot.
Thank you for that clarification. I agree with the basics of your statements. I have not researched available FoE bots for myself, but if you have and there is nothing out there, then your conclusion is reasonable.
and that such a bot would not be detected by inno is somehow known?
A well-written bot could be quite difficult to detect. For the bot designer, it is an iterative process. 1) Write a bot. 2) Use it until Inno detects and bans it. 3) Modify the bot to avoid detection and return to step 2.
On Inno's side of the fence, it gets a bit more difficult. Dumb bots are easy to detect. As a bot gets smarter, it becomes indistinguishable from a human player performing the same actions.