I agree with all the points you have mentioned. Talking about zero upsells, for instance, the best thing online, is setting aside a budget, and being able to respect that budget without exploding it. This is the amazing part about Wealthy Affiliate. You can plan 2,3,or even 4 years in advance and that budget will still be very relevant and applicable.
I would also like to see a forum built into the platform. Wealthy Affiliate has a unique way of building a community and I understand why they shy away from a standard forum type of format. Instead, they want to promote live chat sessions, blog posts, private messaging, and public questions where people can comment below. This type of setup is pretty cool at times, but I also do enjoy forums where I can just browse by topic.