I'm pretty new to the fediverse, and I find the idea amazing. But one thing concerns me though. How will server owners be able to afford to run servers with massive amounts of data coming through them? Theoretically speaking, if a Reddit migration were to happen how would server upkeep costs look like?
Adding to what others have said: You can print TPU with Bambulab A1. You just need to feed it directly to the extruder and not through AMS. The generic TPU settings in BambuStudio/Orca should be fine, but make sure to run some tests and slow it down if necessary. If you need supports and have trouble removing them try printing support not in tree mode, but the grid one. They should peel off easily. You should also give PCTG a go if it's readily available where you live. It prints like PETG, but it's stronger and more heat resistant (which you'll need if you want to print a reusable spool)