The range of Rs. 1,500,000 - 2,500,000 per 'month' is limited to CXOs of Indian companies. It's way too high for designers or developers, primarily due to the cost of living.
Communicating the terminology in advance is very important. But, do hackathons fall under these legal requirements? A group of people working for n days without compensation.
Looking at news.arc in the Arc distribution (I think that is a source code of the HN or at least a basis of it, right?), it just misses this kind of URLs:
It basically tokenizes the URL "http://example.com/foo/bar?quux#woah" into a list "http:", "example.com", "foo", etc. (no "" since tokens uses consif internally) and takes the second element as a domain name. (It has a prior knowledge of url starting with either "http://" or "https://".) Obviously "#" is missing in the list of separators.