The few people here who defend the decision to make L4D2 seem to not understand what everyone is upset about. I've tried to summarise the most common issues I've heard people having in hopes that it clears things up:

* Significant content for L4D1 was promised, and never delivered
* Valve put little faith in L4D1 since they almost certainly started working on L4D2 right after release
* The fact that L4D2 is nearly identical to L4D1 will decimate the community for both games
* The announced date is not nearly enough time to polish content or make significant gameplay changes
* The new character designs seem bland and unappealing so far
* L4D2 is too colourful to fit in with L4D1's visual aesthetic
* The fiddle-based horde music is extremely disliked, though the differently orchestrated music is otherwise welcome
* L4D2's release will result in a drop in quality and frequency for L4D1 content, even compared to before
* The community has lost faith in Valve's former reputation for commitment to their games post-release


If you can think of any I missed, suggest it and I'll put it here. Note that the list is not for every problem people have with the game, just the major ones that nearly the entire community has. For example, I think the incendiary ammo is dumb stylistically, but it's not worth putting on here.

This is not a debate thread. It is purely an observation of what the majority of forum members and active players appear to be saying. I believe this is the most constructive kind of feedback Valve can get.

Everyone who replies to this from now on with a "thumbs up" post icon will be included in an email to Valve detailing this list of issues with Left4Dead 2