Adding CAPTCHA is one option, but then I was wondering, YC News also doesn't have any CAPTCHA protection. Then how come spammers don't submit advertisement based non-relevant news to YC News?
Does YC News algorithm detects such kind of links? Or is there any manual intervention? Or it's just that the community is so good that nobody attacks it.
In anyway, your input about how can tackle this situation will be very helpful. Currently I manually go and delete all those irrelevant submissions (Daily there are atleast 5-10 such submissions.)
-Aditya