Your issue isn't with Labeeb, it's with "non-pro-ness". Guess what, we all start somewhere,
[even me]. But perhaps the reason I don't get flamed is because I know when to present myself, and how. But what if I don't know how to present myself?
Suppose I join the army and immediately join the "elite" group. I don't know how to march or fire a rifle accurately. This results in our team failing our training. You are our elite. What do you do? Kick me out? Because that's what you're doing, and "it works" (Evan Izaak).
Consider the case that your team is sent on a mission and most of you don't return. Now you don't have as many people in your team, so you can't participate in the next mission. You need to accept lots of new recruits to participate. Now you have a less favourable situation, but it can't be helped (not easily).
I suppose that analogy is quite far fetched, but it's the first I thought of. Another analogy would be "what if you had a younger brother/sister who wants to play the computer, but you keep losing the game because they can't play well". Are you a nice older sibling and let them play anyway? Or do you
choose to be mean (even if you "don't want to be mean")?
If you don't like the level they're at, don't condemn them, they just haven't learnt to present themselves.
If you can't say anything nice, don't say it.
Corollary to this is, should we have a "playground forum" for younger ones?