user972: I raised a spam flag on an answer, that doesn't answer the question, but it's tying to sell a product.

I now realized that the product in question is mentioned in another answer and the author of the flagged answer is the maker if it, trying to reply to OP's comment, inquiring about the product.
The proper flag should probably have been just a NAA, but the mod should have still deleted it as a non-answer.
I assume there was a mistake by a mod, because the message refers to the Gerben's comment linking to the product.

Should I have just flagged this post as NAA or is this post still considered spam?

user10794: That was my mistake. When I saw the flag I thought it was a flag on the comment, not the answer below. Due to the way the page appeared on my monitor I only saw the comment which mentioned where the product could be bought, and assumed that was what the flag was for.
You are quite right that the answer in question made no attempt to answer the (original) question, so I'll deal with that. :)
(The answer was answering a comment under a question, however I don't think that Crossroads realizes that answers are supposed to answer the main question, not auxilliary questions raised in comments).

Should I have just flagged this post as NAA or is this post still considered spam?

I don't think the post is spam, since the author of the post was trying to help someone find a board, mentioned in my answer, so this is hardly spam. You are right, though, to flag as not an answer.

972: <p>I raised a spam flag <a href="https://arduino.stackexchange.com/a/50385">on an answer</a>, that doesn't answer the question, but it's tying to sell a product.</p>

<p><a href="https://i.stack.imgur.com/ELoKU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ELoKU.png" alt=""></a></p>

<p>I now realized that the product in question is mentioned in another answer and the author of the flagged answer is the maker if it, trying to reply to OP's comment, inquiring about the product.</p>

<p>The proper flag should probably have been just a NAA, but the mod should have still deleted it as a non-answer.</p>

<p>I assume there was a mistake by a mod, because the message refers to the Gerben's comment linking to the product.</p>

<p><a href="https://i.stack.imgur.com/jmU2Y.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jmU2Y.png" alt=""></a></p>

<p>Should I have just flagged this post as NAA or is this post still considered spam?</p>
 10794: <p>That was my mistake. When I saw the flag I thought it was a flag on the comment, not the answer below. Due to the way the page appeared on my monitor I only saw the comment which mentioned where the product could be bought, and assumed that was what the flag was for.</p>

<p>You are quite right that the answer in question made no attempt to answer the (original) question, so I'll deal with that. :)</p>

<p>(The answer was answering a comment under a question, however I don't think that Crossroads realizes that answers are supposed to answer the main question, not auxilliary questions raised in comments).</p>

<blockquote>
  <p>Should I have just flagged this post as NAA or is this post still considered spam?</p>
</blockquote>

<p>I don't think the post is spam, since the author of the post was trying to help someone find a board, mentioned in my answer, so this is hardly spam. You are right, though, to flag as not an answer.</p>
