1) If entire altcoin market is tanking you can pick up bags, the trick is to know what pairs to let GB run with, I find some coins perpetually work whereas others may pick up bags in a bearish market, but Gunbot works so that it will never sell it at a lower price it buys at. I get rid of bags manually or I look at the pair on a Coinigy chart and if it's tanking turn it off.
2) GB is not easy to setup. If you come from a programmer language background it is a huge advantage, it took me a couple of weeks to fully understand it. There is not a simple manual for it- there are lots of posts on Gunthar's forum which are guides but it could be organised better perhaps. Some settings work better than others.
3) Some of the old versions work much better than new versions- the release candidates are a bit unstable- for those of you wanting to buy I reccommend you use version 3.3.2 and stick to that till the bugs are ironed out in new versions.
I've managed to find settings that work really well- my account has grown substantially since I turned it on. You do get free updates for life. I actually think for what you pay for it's a decent price but it does have a steep learning curve.
Gunthar works however day and night to make it better, and there is an active community of experienced members who help the newbies. I can only imagine how powerful GB will be in a few months time.
Also it can't because you cannot predict future and send info back to past
Also it cant because if it did you would already own everything via exponential return