Since as a conjunction can refer both to causation and to the passage of time […], and the mavens believed strongly that since there’s potential confusion over which meaning of since is meant, one should avoid since as a causal conjunction.
(…) the mavens believed strongly that since there’s potential confusion over which meaning of since is meant, one should avoid since as a causal conjunction.
I’ll save you the trouble of looking it up:
https://www.merriam-webster.com/grammar/since-as-because-usage
As a foreign learner I’ve never heard of this debate. To me, “since” simply has two meanings, like almost every other word in English.
I see what you did there, Merriam Webster.