What makes you think that "everyone" hates Lucky Star? If you're basing your assumptions on the amount of trolling it gets, you're an idiot. Trolling is an indication of popularity; you're not going to get much response from trolling a series no-one watches or cares about, and getting a response is the whole point of trolling.
If you were paying attention when the series aired, you would have noticed that it was actually quite popular. On release days, every other thread was an LS thread. You would typically see 3000-4000 peers on the torrent within 15 minutes of release, and I doubt that they were all just looking for trolling material.
But any genuine discussion of the series happened as it aired. And the series finished 5 months ago.