What do we do about spam questions that could be marginally useful?

Question

The recent question Benefits of Patio Pavers has had similar versions posted by the same two users, both with the same link:

• https://diy.stackexchange.com/questions/3620/interior-design-closed
• https://diy.stackexchange.com/questions/2868/to-level-the-paver-walkway-closed

They're not descriptively written, poorly tagged, and obviously spam. Are they an automatic close, or should we allow one to remain open (with spam link removed) to address a valid question? Or can we just ban the two (assumed) fake user accounts?

Answer 1

Hmm, I'm definitely not seeing any value in those questions at all.

We do have a policy on self promotion in the /faq ...

https://diy.stackexchange.com/faq#promotion

May I promote products I am affiliated with here?

Be careful, because the community frowns on overt self-promotion and tends to vote it down and flag it as spam. Post good, relevant answers, and if they happen to be about your product, so be it. However, you must disclose your affiliation with the product in your answers. Also, if a huge percentage of your posts include a mention of your product, you're clearly here for the wrong reasons. Our advertising rates are quite reasonable; contact our ad sales team for details. We also offer free vote-based advertising for open source projects.

... but this is just plain old spam. Good catch!