Am a relative newcomer to DIY and am really loving it, and have introduced it to neices, nephews and friends of my daughter. However, I do have some feedback about the new membership pricing structure that I hope DIY will consider.
Did DIY do any surveys or research before choosing the new pricing structure? $9 per month per child places the service as a bit unaffordable (or hard to justify within the household budget) even with only 1 child let alone for a family or 4. I understand there is a cost with making physical badges and sending them, but personally I would rather a smaller fee and a purely digital service. For a poweruser $9 per month might be a fair price, but most kids will wax and wane and may be super keen for a month then do nothing for 4 months, then dip back in, etc. Minecraft is a total of $20 per user for life membership. Gamestar Mechanic has a similar price of $20 per user for life for the premium version (free version also available, which you could say is equivilent to DIY's current free version), and educational pricing of $2 per user for premium account. Most social networks for adults do not charge any money, and may gain revenue by invisible means like selling data.
While $20 for a user might not sound like much of an income for DIY, the lower pricing results in a much higher number of people signing up. Didn't Minecraft start out completely free, and recently sold for $2 Billion to Microsoft? And then there are online services such as Khan Academy that are totally free because they've sourced financial support from organisations like the Bill & Melinda Gates Foundation by arguing the case that it will benefit all of society to provide equitable accessibility for children to improve their skills.
I know that there is still the free version of DIY (thanks!), just hoping that it keeps free or provides a smaller charge on premium membership.