It's very rare that you find anyone on Lemmy/Reddit that actually takes more than eight seconds to critically think about the significance of "religion," and not just immediately monkey brain into "religion is for idiots." Alas, I hoped that this particular group think would've stayed behind.
A belief is not a religion, and a religion is not a belief. Any one person can be varying degrees of "religious," and any one person can hold varying levels of belief in a higher power.
I don't have much else to add because your comment was pretty well thought-out.
Yeah, it's definitely convenient in most cases, I would say. Though it can also be inconvenient when messaging, because sometimes said need to add context can read very unnaturally in an otherwise grammatically correct sentence.
Pretty sure they're referring to class names describing the visual style being applied, rather than what that class represents semantically.
E.g.
.red-bold
vs..error-text