I also went trough the list of extremely short tags (using this query).
svd can be expanded into singular-value-decomposition (created synonym)
lft can be expanded into linear-fractional-transformation (renamed without synonym)
sos can be expanded into sum-of-squares-method (renamed without synonym)
rbf can be expanded into radial-basis-functions (renamed ...
Should the length limits be adjusted?
For the most part 25 characters suffice, and it is also a road-block against exaggeration in tag names. Say, I would not want to see tags like limits-at-infinity-without-lhospital-involving-trigonometric-functions.
However, it is a fact, and you gave some example, that there are some legitimate and natural tag names ...
Just to make this clear, the 6 characters limit is only related to suggested edits. Which means that after you reach 2000 reputation points, you can make shorter edits. I'd say that this is not very likely going to change. (This guess is based on plenty of past discussions about this issue both here
and on the main meta.)
If you are making suggested edit ...
This is the site humbly suggesting you to use more characters. I'd like to also encourage you to do this. And also to consider the following observations:
Users who habitually type things like "n-mfld", "height fcn", "cohomol", "sing. coho", " Lebesgue meas."... are making the site harder to use for others: these abbreviated keywords will not come up in ...
There is a limit of 25 characters for the length of tag names, and the hyphens count. The proper name moment-generating-functions is two characters too long, so two characters were dropped in such a manner that the tag name is still understandable.
The character limit was increased, so it was possible to create the tag with the proper name. moment-...
Some options available to users below 2k:
If you have an edit which consists of less than 6 characters and you consider it important (and cannot think of any additional improvements of the post which would get you above the character limit), you can:
add comment (which will notify the OP and they might make the edit, or some other user who see your comment)...
Your edit, among other things, added the sentence
I didn't fully understand the difference between an odd and even permutation so used this site to learn about them.
That is, you made it seem like the one who posted the answer was lacking in understanding. I would have rejected your edit for this reason alone. (I would have accepted your edit if this ...
The divisors is for divisors in algebraic geometry.
There have been discussions about this in the Tag management threads earlier:
Tag management 2015 and
Tag management 2016
Among the options is expanding the tag name to divisors-algebraic-geometry.
This is certainly not a bug. As mentioned in comments, character count for other formatting options is also by code and not by output. For example **1** is counted as five characters, although it is only rendered as 1. Similarly [a](http://spaaaccccce.com/...
Is there an upper limit for the length of a tag, beyond which tags get automatically truncated?
Yes. It is 25 35.
If not, could a moderator add the missing letter (rather than create a correctly spelled tag, retag all the currently tag questions, and then delete the misspelled tag)?
While due to the character limit, moderators cannot rename to the tag ...
Situations warranting a simple "yes" or "no" exist, but they should be in the extreme minority. Discussions here should be more in depth than that. Comments are not a chat room. The limit exists to remind users to write good content, and the inconvenience of being unable to leave short comments pales, in my view, to a potential decrease in overall quality ...
It has now been fixed by the author of the post.
In the future, note that you could have made some (admittedly minor) grammar and formatting corrections; see my revision. This would've put you over the 6 character limit.
Another option would've been to leave a comment informing the author of the mistake, so that they can correct it themselves.
First of all, you might not be aware of this but Mathematics Stack Exchange has its own meta site, which is probably a better fit for your question. Except that it has already been asked before:
Minimum suggested edit length and has a lot of support from community. However, the answer by Jeff Atwood explains the reasoning behind this, why it's not likely to ...