To wonder what positive contribution pedants make to society.

[AgentSpod]

What is it that makes a normally quiet, unassuming person, turn into a despotic dictator cutting innocent posters down with their barbed grammatical comments?

Poor, poor patronised posters, left to rebuild their confidence without a second thought thought from these language fascists.

I ask you...what gives them the right??

The BBC is a company, not individual people.

think:

if you can replace the name of a company with the words "The Company" then you always use a singular.

so Bob and George are two people that set up a business called Bob & George Ltd

So (Bob & George Ltd)(The Company) is...

Not that simple, nickel - see link above for the "committee" example.