Some others shared that this is likely a federated mastadon post and that the formatting doesn't get translated well. To me, this looks like a couple of short comments with links to 3 communities, but no specific content related to the comments. Here's a screenshot:
The filament path does degrade. You want your filament to travel through your PTFE tube and nozzle with the smallest air gap possible (from extruder to nozzle- filament roll to extruder doesnt matter as much).
Due to wear over time, your PTFE tube and nozzle are both "wear items" like the brakes on your car.
Here's a great article with photos of some new and used nozzles that have been cut in half to show the wear.
Some others shared that this is likely a federated mastadon post and that the formatting doesn't get translated well. To me, this looks like a couple of short comments with links to 3 communities, but no specific content related to the comments. Here's a screenshot:
No offense intended.