First off, "crap" is a subjective term and specific to an individual's opinion about a subject or topic. However, if you are making reference to some of the Hubs that are broken English or poorly written, then I would ask that you remember that HubPages isn't exclusively used by English speaking people only. The writing is to be in English, but the person does not necessarily needs to know English as a primary language. HubPages is a global community of people who like write for all different reasons.
You would be more helpful by privately emailing those who are having obvious trouble, and make them aware of it, and maybe help them. Depending on whether or not it is in your ability to help them. Just a thought.