I think making bad coffee in a bad way is not offensive to coffee snobs. What would be offensive to coffee snob would be to get some extremely expensive boutique coffee beans and prepare them in a snob way where each step is wrong. Example:
- get single original, unwashed fermented with who knows what 80€/kg beans
- prepare them with a Chemex, using a recycled filter paper (if this ever exists)
- measures your beans in a measuring cup, 5 cups / L of water
- grind the beans with a blender (any grind size is fine)
- skip weting the filter, just put your grinded beans in the filter
- boil a tap water kettle to 100°C
- pour all the water at once until the filter is topped up (do not measure obviously)
- wait until it drains
- server and enjoy