There are many reasons why Chengdu barbecue is slagged off by everyone, here are some of the main ones:

1. Expensive. The kebabs in some places are overpriced, even more expensive than some upscale restaurant dishes, which makes some consumers feel unworthy.

2. Average flavor. Although Chengdu barbecue is rich in seasoning, some stores do not master the fire in the grilling process, resulting in kebabs that are too dry or too greasy, with a poor taste.

3. Hygiene. Some stores have poor hygiene conditions, and the ingredients and seasonings for the kebabs may not be properly stored, which can affect the quality and safety of the food.

4. Single taste. There are many kinds of Chengdu barbecue, but some stores only sell some traditional kebabs, lack of innovation and change, resulting in a single taste.

Overall, the main reasons why Chengdu barbecue is criticized are expensive price, average taste, hygiene problems and single taste. However, there are some stores that have made efforts to improve on these issues and introduced better kebabs, which have been welcomed by consumers.