What was this?

This was a Twitter live-stream of hateful/abusive/bigoted replies to a small number accounts on Indian Twitter as detected by a machine learning algorithm.
There would inevitably be false positives here, especially when it encounted new trends or topics it had not been trained in.

Why was this discontinued?

Off-late, pretty much every tweet I've reported has come back with a 'does not violate twitter guidelines' response.
It is especially discouraging when some of these were public rape threats and calls for genocide.

I'm also not particularly optimistic of anything improving in this regard with the new ownership at Twitter.

I apologise to anyone that was still using this.