A few conclusions:
"/* is more prevalent than "/. Yet anecdotally developers use "/ more, and in practice most schemes are protocols.
"/* is used consistently (to mean the same thing) as are "/* and "/.
"/ has been used consistently for the past 10+ years and in a way consistent with its operating system roots.
"/* is used inconsistently as to whether or not it includes the leading "#" hash/pound symbol. However, notably absent from any specification or platform was the alternative phrase "/*.
I feel there is something wrong