The question is now approximately one month old and it received a lot of upvotes. It might be the time to move questions to another tag and to do the suggested blacklisting.
I am answering to @Willie Wong's comment from here. I've decide to answer in chat, since this will be a little longer than a comment.
@Martin: saw your flag. We would need to rename the tag before we black list it (I think). It looks like from the votes below the new name is (graphing-functions); I don't have a problem with that. But before we do the mass rename, we should find the ones that don't fit per your own comment meta.math.stackexchange.com/questions/8729/… and manually rename them. The only way to do that is to go through the list slowly over the next few days.
Once the manual retags are done, ping me again (or any other mod) and we can rename the tag to (graphing-functions), set up the appropriate synonyms, and request the blacklist for (graph).
Well, if we are not going to use the tag (graph) in broader sense (which seems to be the case, if the new name is (graphing-functions)), then the tag (graph) should not be used here.
But I am afraid it will be difficult to find a different appropriate tag.
I should add that both questions are rather unclear to me; I am not sure who is to blame here - the formulation of the question or my lack of knowledge.
This seems much more as graph in graph-theoretical sense than a graph of a function.
Almost no users voted in the thread which I started about this question.
But since most votes for new name were for (graphing-functions), (graphing), (plotting) - or something similar - I'd say that users who voted for those names prefer to have only such questions in that tag.
I have already retagged the ones I knew about and left a link to the thread about blacklisting as an explenetion. For example here.
The tag-wiki for graph is already invisble to me; I see only begging of it on Google: Given a function $f$ defined on a domain $X$ with co-domain $Y$, the graph of $f$ is the subset $\mathop{Gr}(f)\subseteq X\times Y$ given by the set of ordered
But this kind of tag-wiki is not a good fit for the tag about graphing function.
It would be appropriate for the tag used in the broader sense.
The last 4 questions on meta are about tagging. It almost gives an impression that it is the most discussed thing there. (But situation like this is quite unusual.)