> Once you kill the process, your local blockchain is [most likely] unusable.
Totally false. LMDB is perfectly crash-proof in that scenario and killing the process never damages the DB. The only thing that's not guaranteed is turning off syncs, in the face of an OS crash/power outage.
If you don't sync, you're not abusing the SSD. If you run on Windows, the OS is too unstable to use without safe sync mode though.
>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.
----
>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.