Yep. We have been down this road before.
Some of the non-life safety 'biners have held hammock hanging forces for some folks. Problem is that the QC is lacking for these items - or totally non-existant.
Personally I do not want to suffer an unexpected drop onto rocky ground. Heck, I don't want to suffer an EXPECTED drop either.
Life-safety rated carabiners are cheap insurance and contribute to sound sleeping.
Oh, yeah - If you want to shave weight, Dutch Clips cannot be beat.