Nearly 2 years ago, there was this Evolving Ring 3 event going on. But then there were lots of DDoS and as part of the compensation Nexon gave players 10 AP for free, which meant that they would have more total AP built.
Found the link: http://maplestory.nexon.net/news/news/past/00EsT/
Are/Were there similar events/compensations that gave players some free AP? And I'm not talking about bonus ones from skills or equips.