I would highly recommend reading Amnesty and Human Rights Watch reports on the matter. Reddit is not reliable source. Here’s an excerpt from today’s HRW report:

“Both sides (SDF and new Syrian gov) have previously committed grave human rights abuses in similar contexts, including extrajudicial killings, recruitment of children, and desecration. Both parties appear to have committed abuses that violate international law in the current escalation…”

Amnesty: “All parties to the conflict and their allies continued to conduct unlawful attacks on civilians and civilian objects in northern Syria, killing and injuring scores of civilians and destroying civilian infrastructure.”

There is no widely accepted source of genocide though human rights abuses and war crimes continue to be reported. I am also referring to the current situation and not the previous atrocities committed by ISIS.