some good stuff but…
you’re suggesting the use of a hacky technique that scales poorly with older hardware (looks unacceptably bad with TXAA turned off, and/or in lower resolutions).
as it’s obvious it relies on TXAA which is not an option for everyone to use (TXAA comes with multiple problems, it’s simply unusable on games with fast motion).
the issue I have with suggestions like this is that it put more bandaids into the real problem (translucency rendering not being satisfactory in the engine). it helps settling the status quo of a broken feature instead of building up community interest to have improvements made by Epic