Is this club just for computer geeks?
No. High quality but free software is not just for computer geeks, it’s for computer users with good sense and taste. This club is for cyclists with the same attributes.
Do I have to leave my current team?
Again, use software principles as your guide. Does opening a spreadsheet in OpenOffice Calc mean that you have to now shun Excel for life? Absolutely not. You can race for whoever you like, whenever like. Do what you enjoy and find worthwhile.