[amathprof]

The project isn't exactly dead (I'm one of the maintainers). The direct-to-MathML version is somewhat dead, but the AsciiMath syntax rendered via MathJax is still widely used. The syntax is pretty mature at over 10 years old, hence the lack of commit activity.

[a3_nm]

Thanks for explaining this! I wasn't implying at all that the project was not being used. I understand that the syntax may be mature, but the lack of commit activity does not explain why there are still so many pending issues in the repository. :)