For years, the Gawker network, which includes Gizmodo, io9, and Kotaku, has fought a battle against commenters, particularly trolls. The huge blog network is driven in many ways by the comments on the site and founder Nick Denton doesn’t like it. He went so far as to call comments on his sites “a joke” at SXSW and said the promise of thoughtful discussion never materialized. “It didn’t happen,” he said. “It’s a promise that has so not happened that people don’t even have that ambition anymore. The idea of capturing the intelligence of the readership – that’s a joke.” Now, they’re going to try to reinvent…