Everyone was a newbie at one point, even people with natural affinity and extraordinary talent. It never pays off to gatekeep your community, it will die and so will the interest of it. Be welcoming. A great teacher can explain really complex stuff in really simple terms. Stay kind.

I help run a makerspace. It's amazing when a newbie comes in and shows some enthusiasm. They often get swept up by an expert or 2. They tend to leave slightly dazed, but happy. Those that start coming regularly gain skills rapidly. Often they are the ones that swoop in to help the next newbie who turns up nervous and unsure.

Tell that to the loonix gnutard community :(

Unless it's a support group. Then, do the opposite of that.