Those fall into the "other" category. As I write this, "Other" has 5.91% of the votes (52 / 880 votes)
Give the guy a break. You can't list every possible choice and based on these numbers, it doesn't look like very many people use the technologies you listed.
If we (generously) assume only half the users of those languages actually voted, that would change the "other" group to 104/932 = 11.16% which would edge out Java's 6.55% and PHP's 10.84%. It would still fall short of Ruby's 13.95%, Python's 15.13%, and Javascript's 20.71%
I don't mean to be overly critical of the guy who posted the poll, these come up periodically and almost always have those issues.
IMHO, tracking the overlapping between them would be an interesting data point - Python and C, Python and Javascript, Ruby and Javascript, etc. At that point you've got a cartesian product of everything to track (in this format), though. It would probably be best to do the polling completely differently.
Also: "which language + which niche" would be good. This seems to be skewed toward web programming.
Give the guy a break. You can't list every possible choice and based on these numbers, it doesn't look like very many people use the technologies you listed.
If we (generously) assume only half the users of those languages actually voted, that would change the "other" group to 104/932 = 11.16% which would edge out Java's 6.55% and PHP's 10.84%. It would still fall short of Ruby's 13.95%, Python's 15.13%, and Javascript's 20.71%
Check out this thread for people voting "other" http://news.ycombinator.com/item?id=1843229