I like to think that people on the server do not see me as someone who is not welcoming to new players. I regularly ST new player games and find it very enjoyable and if there is a split I often choose to stay in the beginner game and play with the new players.
I think that this is an important discussion that is raised in many levels by lots of experienced players on the server. I think that it also also actively inclusive towards beginner players to make a space that more experienced players can choose to go to instead of beginner games.
I have spectated many games where new players have been prematurely made a jump towards scripts that are too advanced for their level. By this I do not mean that they are playing stupid crazy customs, it might just be a jump to SNv before they are ready. The main reason I have seen for this is new players trying to fit in and not feel like they are holding others back.
In many cases this has been due to inappropriate actions by the more experienced players and that would not be a focus of this suggestion as that is already against the rules. But as just one example, having players show up to the pickup game and excitedly talk about their scripts (which is something we should be encouraging on the server) makes new players feel pressured. I think a powerful tool in removing that pressure would be to be able to say to the new player "this is a beginner game and anyone who does not want to play this kind of game will happily wait for the other pickup game".
This is one of many examples. It would come at a cost of having some new players wait a little longer for a game but that is OK. At the moment experienced players are on some nights being locked out of non-beginner games. Being a "beginner friendly" server does not mean "beginner friendly at the expense of any and everyone else".
Something I have seen when discussing this, and I have discussed this a lot, is a complete lack of acknowledgement for the experience of an experienced player who does not want to play a beginner game. Even if someone is arguing in favour of keeping the system as it is now should be acknowledging this flaw. It does not mean that their argument for the current system is wrong, but failure to acknowledge the problem is doing a disservice to a large portion of out community.