In my opinion, during this recession in Britain, it's bloody bold to threaten such a strong tourist attraction.
On a BBC report about Sub-Terra, the news reporter speaks to an employee of Alton Towers (I forgot who and his position). He spoke about the recession and how adding two new rides will stimulate the economy in this part of the country.
If the outcome damages Alton Tower's attractiveness to visitors then the local area will be heavily damaged. Alton won't be able to employ as many staff members. Local businesses that relied heavily on the tourist traffic of Alton Towers such as B&B's and pubs will suffer to. I wonder whether these people have any brains at all. It seems incredibly selfish to complain about the noise and take legal action when they potentially can kill the area they live in.
The only logical explanation for them to complain is that they love the area so much and they won't want to have to move. But that's ironic as taking legal action and winning actually kills the area they love so much. Alton Towers is what keeps many businesses in that area. Hurt Alton Towers, people will have to move away. Not everyone has the luxury of their own hypocritically noise producing factory.
If they win they ironically risk ruining not only their private lives (public harassment) but potentially their business life. I mean, who'd want to do business with individuals who damaged another business for pitiful reasons?