This is good. I find that people resort so swearing and cursing because they don't know how to argue back and they don't know what to say in return. Sometimes it is a lack of knowledge, other times because the other person is saying something unjust.
It's very rare to come across someone who is just saying something out of a misunderstanding and prove their ignorance and correct their wrong. Even more rare to see someone who will change their opinion to the truth once they hear it.
In short, online rebuttals don't work most of the time. You have to be 100% sure that the person you are countering is serious and that they are someone others listen to. It has to be someone who is well-known. Otherwise, wasting time with some nobody is a terrible way to go. So from my experience, always better to just learn more about Islam and continue to educate yourself.
