- searchyc usually returns better results
- a search box is much more useful than a link
- it should be in the header, or at least not in a place that nobody ever looks at
But by now it's obvious that that's not going to happen.
(See how complicated such matters actually are? Nothing that goes on the front page of the site is ever a trivial matter.)
Experience shows that this is probably not the case but then at least we can point them to the link without having to explain site prefixes, which is still a net gain.
If it were in the header (which is pretty crowded) it would be more useful, but I can see that that might lead to complications, if it were a miniature form in the header it would be better still, but I can see that that would really be much harder to integrate.
Searchyc.com probably can't handle the load if they are the 'sole provider of search' for HN, so it looks like that is not an option, when the HN robots.txt file locked out google because you had to crunch the numbers for the applications it was apparently touch-and-go on searchyc.
Now I'm really curious what your secret startup is that may solve the problem, and I hope they roll out soon.
http://news.ycombinator.com/item?id=1329380