Why am I not able to upvote posts?
Read site’s FAQ. If you know that you need karma to ask questions, then obviously you need it for upvoting.
Why?? Because you(fake account created by @rachitiitr) want to upvote his answers at last moment of time??
See proofs here… https://discuss.codechef.com/questions/108451/report-fake-accounts-anonymously -_-