I also believe DigiByte may reach global adoption one day but this growth still leaves a sour taste in my mouth. Let me elaborate.
My problem is that on poloniex a buy wall keeps moving up and down really quickly. The 10 BTC buying wall gets spread 11 satoshi under the current price. It's been like this for the last 3 days and I think a bot is at work. Yesterday when the price peaked at 190 again there suddenly was 30 BTC worth of buying wall which subsequently vanished into thin air.
EDIT: Apparantely trading bots are allowed on Poloniex. Can't speak for other exchanges though.
Regarding the walls; Yes thats right they are placed at strategic points and depending on the guy / group that wants to manipulate the market it's a huge wall or several small orders. Key here is "mass psychology". The only reason those walls are there is to give you a comfortable feeling, "oh if someone wants to buy 10 BTC at 150, I ride with him and buy some also" or "hmm, is it safe to buy this coin? Ahh look, a lot of buy orders, it's OK to hop on the train" And if someone wants to force the price down the opposite occurs. So if you see large orders two things are important, 1) do they have a habbit of moving out of the way so they wont get fullfilled? 2) look at the trade history instead of the orderbook. The recent buys and sells give a better idea of what happens, but... they are also easy to manipulate by trading against oneselve.
I agree that the rise was orchestrated, but there is one occurrence that did draw my attention and thats the buyout on polo till 1000. Thats not normal pump behaviour. A pumper buys up to a certain point and tries to create momentum so the market takes over. This buy looks like some large investor filling his bags and went away. Why would someone pay 998 Sat and go away? That also has to do with psychology, most people have a very narrow vision of whats happening, so good news price rises a bit, no news price drops. But what if I have a broader vision about crypto or DGB in special and my "signals" tell me it's going to be big... Right! In my scope current price does not matter, if I buy at 20 or 2000, my gain wil be exponential anyway. On the other hand It could also be someone was "having fun" at the market because his gain was big already.
And to aswer your question: yes bots are allowed on nearly all exchanges. They are the ones that trade just above or below the limits.
Note: please don't see any of this as a buy nor sell signal. Everyone has to decide for themselves to invest or not invest. Trading on exchanges is like driving a car, I can put my kids in my car, maybe they get off the driveway but without proper guidance and experience they wreck the car sooner or later.