As to your search for good and bad about clans... There is every style or type of clan possible. They have personalities just like people or other organizations. The suggestion I have is to investigate the clans where you are already familiar with the players. You like their style and the way they get along--or don't--with other people. See how they treat others in clans and others not in clans. How they treat noobs. Do they own, and do you own, etc.
Check out their forums, observe for a while. Being a more mature player (in age anyway) you will perhaps want something different in your clan than many other younger players want. All clans are not alike, all clans are not for you.
Since you mentioned them already, I will put in a plug for -[x]- clan, just based on personal experience with some of their leaders, Badman in particular. I remember being a noob and thinking he was one of the best players I had ever seen (still is). But he was very patient with me and others. I don't think I recall him being less than polite with noobs asking questions, if they weren't pestering people and being real jerks. Other clans may not give noobs the time of day. However, clans are made up of individuals, too, so not all members are exact replicas of the overall clan attitude.
Since -[x]-Alex plugged SOL clan (thx), of which I am a member, we would be glad to check you out, and have you come check us out.
www.solsquads.clan.st But we only play Bani's Instagib Goldrush, mainly on Oldcrows32 and -16, so that might not suit you.
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medical marijuana patient