Currently, there is no tag for "secp256k1".
Given how important Bitcoin has become, it might be time to have such a tag.
Doing so would make it easier for users to find and answer secp256k1-related questions.
Yes, we should introduce a secp256k1 tag. This specific curve has become important enough to merit its own tag.
b degnan: Besides that, people may not know that secp256 would be related to ECC and DSA.
No, we should not introduce a secp256k1 tag. Just a single curve specification is too specific to merit a tag of its own. Instead we could introduce a koblitz tag, as the curve is associated with a Koblitz curve.