On YouTube, I saw someone with an insulting username about Jesus peace be upon him, and I wanted to reply to him to remove it. I forgot that when replying to someone on, YouTube automatically @ mentions their username in the reply, so it put his username in my text, I quickly stopped but is it kufr?

Ustadh AbdulAziz al-Haqqan
Dismiss waswas, and if you can't, seek medical help.