2012-2013 was good.
early-mid 2014 was alright. After the manga ended on the other hand. I remember back in late 2014, hot Sakura/Hinata threads were being made literally every day. It was also super pampant in early 2015 too :lol. Since the manga ended trolling strated becoming more prominent with not much actual Naruto stuff to discuss. 2016 so far is pretty much that.
Trolls were also big back in the days before the manga. 2012/2013 were the year of the great battles of the Minatards and Itachitards lol. Fanboys would rush into threads and some less zealotic members would also post their 2 cents. Take this thread for example.
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40+ pages over a question like that.
there were also good members and healthy debates/threads in 2012/2013 too. Moreso than now imo.