He was working for Google but he left recently, no? I doubt Google would have any problem if he works on mold linker full time.
I believe he decided to do things this way.. one man show is always problematic (atleast it is easy to go back to lld if anything happens to the author or the project itself)
C++ needs a major reboot. Remove old school annoying guys which hold all progress. Allow ABI break. Pick top 3 priorities and adress them in 2-3 years.