You don't mean lurk on Zig Forums, right? The only thing he'd learn lurking here is that this board is mostly Zig Forums shit and maybe 10 lines of code a week. He would learn maybe 90% of this board can't code for shit, or can't tell the difference between an interpreted language and an interpreter. He'd learn that everything is pwned and he should just use win10. He'd learn 1000 different ways to describe a project getting a CoC as cucked. But he wouldn't learn anything technical.
If you want to learn what a self-hosting language is, go to HN, lobste.rs, or even lainchain. But not here, not Zig Forums. The shitty moderation turned this board into a marginally more cringeworthy /g/.
Oliver Clark
implication: he should not lurk for two years. He should open his mouth and ask questions, and talk about what he knows, and replies like 'lurk for 2 years' should be reserved for when that's actually good advice.
David Baker
it means that a preferred implementation of the language exists that is written in the language itself. Contrast, awk, a language that is written in C and that you would never even think of writing in awk itself because awk is a narrow utility language that just isn't suitable for implementing languages. Or hell, SQL. You can do a whole lot in SQL but you would never implement SQL itself with it.