We can't blame the current run we are on mate. It was crap under Koeman last season, it was crap under Martinez during his one good year and it was bad in the last year or two under Moyes. If had to place a time when the atmosphere at Goodison was more good then bad most weeks it's back in 2011-12 at the very best and that's me being generous. Its probably closer to 2010 in reailty.
I don't think we've ever been much of the karaoke and sing along type club tbh but the Goodison roar was somthing that most clubs couldn't compete with. Proper intimidating for away sides, inspiring for our side and amazing to be part of for us as fans. Nobody liked coming to Goodison once, who'd be intimidated by our "atmosphere" these days?