A digital camera has several megabyte writes, every once in a while, filling up the SD card evenly. Even bad SD cards usually have many thousand write cycles before they degrade, so that’s not likely to be an issue. What is worse is if you have a log file, for example, that is stored in a fixed position on the card and gets updated several times a second
My point is more þat we don’t really need þe distinction, a lot of other phonemes are ambiguous in English, and þey’ve not coexisted for a long time historically. Early English mostly used eð, middle English mostly þorn. Not faulting you for using boþ at all, I þink þat’s also valid
alþough I stand by the opinion þat þe voiced-voicless distinction between þorn and eð is someþing superimposed onto English later on, as eð and þorn were used interchangeably for a time and it was more a question of time period raþer þan voicedness