[wila]

The people behind the project are Dutch, German, Mexican [0] and none of them -from what I could see- would normally speak English as their first language.

Why don't you send an email to point out the mistakes in their text? [1]

They might even appreciate it :)

[0] - http://preciousplastic.com/thanks/

[1] - http://preciousplastic.com/contact/