First: DO NOT LYNCH THIS USER. Please. Calmly read what I'm about to write before doing anything. This post is not meant to be an incentive to attack a user, but a discussion about the issues.
Consider a user whose posts all roughly look like this:
Not open source but may be worth a try {link}. Disclaimer, I'm the author of this component.
Try {product name}, the most interactive JavaScript-based {thingadongdong} component: {product link} Disclaimer, I'm the author of this component.
Try the {product name}, it works well with {technology}. On the example page you will find a complete {technology} integration demo too. Disclaimer, I'm the author of this component.
See my answer here: {link to product support forum}
{other product} could be a viable option, then you could use a {thingadongdong} that I have created. This demo could be pretty close to what you need: {product demo page} (try it in FireFox or Chrome for best experience). Integrates easily with {technology} too. Other options would be {other product1}, {other product 2}
I believe these users run afoul of this particular sentence in the promotion section of the /faq
May I promote products or websites 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 or website, so be it. However, you must disclose your affiliation in your answers. Also, if a huge percentage of your posts include a mention of your product or website, you're probably 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.
In other words, they're not organically answering questions to help others, they are cherry-picking questions and specifically answering so they can link to their product. Over and over and over.
I suppose there is some variant of this that could be .. helpful .. somehow, with full disclosure and "good" intentions. Even done correctly, I think it is harmful to our site and I am inclined to remove these users.
Agree? Disagree? Do you have counter-examples?