Because of a Late Answers review task, I found myself re-reading the answers to this old question: How do you differentiate between walnuts and pecans in Spanish?, and I was surprised to find that anacardo was not mentioned anywhere.
The question has several answers already, some of which have been upvoted many times (for our standards, I mean), and one is even accepted. I thought of editing one of them to include "anacardo", but I'm not comfortable including new terms in other people's answers.
Now, the thing is that all the answers are similar in that they list the names for this or that country, which fits the scenario of Juntemos en respuestas wiki las respuestas cortas específicas de regiones / Let's use community wiki to summarize set of short region specific answers. So maybe it'd be a good idea to merge all the answers into a new CW answer with the names for each country, which would be clearer and also easier to improve with new terms.
My question is: would it make sense to do that... now? The question is like 7 years old now, and there's no way for the OP to change their accept vote, nor for a new CW answer to get on top of the current ones unless these were deleted, which might be undesirable.
EDIT: CW answer posted, as per fedorqui's advice.