How did my nozzle get damaged like this?! see comments : r/3Dprinting

My nozzle ripped part of print from the supports and then it got completely caught on the print and plunged into it as it went backwards. Any idea why or how to

Filament stuck on outside of the nozzle and i can't get it off. : r/ 3Dprinting

Help filament pooling at the tip on the nozzle : r/3Dprinting

Weird extrusion, nozzle digs in : r/3Dprinting

Old plastic keeps flowing from around the nozzle : r/3Dprinting

How do i remove the threads of a broken nozzle? : r/3Dprinting

Just bought a new nozzle after mine broke and it broke again… : r/3Dprinting

What is the issue here? : r/3Dprinting

This horrible backflow has happened twice with the same print job. I can purge it from the hot end but do I need a whole new nozzle? Ender 3 v2 : r/ 3Dprinting