Not everyone on the DevForums knows or wants to know how to code, since there are many different kinds of Roblox Developers on Roblox, some of which has nothing to do with coding. Take a clothing designer or UGC creators, for instance. Do you really think that a clothing designer or UGC creator needs to know what a variable is, even though it has nothing to do with what they develop on the platform (i.e. clothing and accessories).
Even if someone does want to create a Roblox game, they don’t necessarily need to know how to code since division of labor exists: not every 3D modeler needs to know how to code or animate, and not every graphic designer needs to know how to make a button do something (that’s the programmer’s job).
I find it rather disappointing how narrow your view on what counts as a Roblox Developer is, since Clothing Designers and UGC Creators are just as much of a Roblox Developer as Roblox Game Developers, even if they don’t know how to write a single line of code.
I do get your frustrations with people asking basic questions on the DevForums, but there is an easy for that: just ignore them. There are places where people ask help on coding, even if it is rather basic. Everyone learns differently, and you shouldn’t be mad at people using the DevForums as a learning place, even if there are many alternatives (like YouTube) that they could user. There is a reason why Resources > Community Tutorials exists, after all:
Those are my two cents, and I hope people stop wanting to get rid of coding noobs out of the DevForums, since those coding noobs might be really good at something else and not every Roblox developer wants to even code in the first place (like Builders and Clothing Designers).