>Totally false.

This is a well-documented failstate. Usually results in "unable to connect to 127.0.0.1:18081" errorlog, which is most-commonly due to a corrupt database/blockchain (from hardstop/kill).

In order of crashout likelihood: Windows >> MacOS > Linux

>If you don't sync, you're not abusing the SSD.

If you don't sync then you're not (cannot be) a fullnode / network verifyer / ringsigner.

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>LMDB is perfectly crash-proof

It is my understanding that once your initial-sync has completed, the default monero node behavior is to then automatically enter the --safe flag (I described above).

This may be old behavior... I go way back (years beyond a decade). My only modern use in xmrworld is as a personal foot-heating ATM.