While I do agree Poloniex would give a 1000% boost to Gulden , It will be short term affair and people will be expected to buy Gulden at much higher prices. This wouldn't be fair on new people.
The advantage of Gulden having such a low price compared to other coins on Poloniex is that more people get to experience more natural growth.
That's your pro. Here's the con: NLG is trying to peg to fiat (a good strategy which I and others pointed out to devs) but unless there is a significant support at some psychological level, say 0.1 EUR or (better) 0.5 EUR, the general public won't take it seriously.