Pinterest Sections

I've noticed that Pinterest has now created sections, so that you can take an existing board and split it into related sub-boards. This sounds great, BUT....

1. can everyone access these sub-boards, no matter how outdated their browsers?
2. can we move existing boards into sub-boards of a newly created section, or do we have to start at the existing board level (Recipes....divide it into Dinners, Desserts, Beverages, etc. and then transfer each pin as needed?). One person said their pins got lost while switching over....heaven forbid!
3. will it change the reference URLs for existing boards, assuming I am able to move them into a new section?

So, I might try this with something like my recipes board, which really does need subdivisions similar to those mentioned above. But meanwhile, I think I'll stick with my current subdivision system of  naming boards things like "Embroidery - Counted Thread" and "Embroidery - Stumpwork". One thing I've noticed is I haven't been able to move the newest boards and have them stick where I put them. I'm wondering if this has been fixed and if it has more to do with my browser than the Pinterest site. The newest boards have not been added to this (currently dormant) crafts dictionary site, and those are the ones that are not movable, so there is one advantage to having them off by themselves until I can get around to moving them.

Ah, I see I dropped this dictionary project back in the spring of 2017. In truth, I have too many things that keep me from moving about as much as I should, and we have such poor internet service at home that I would have to go to a library to do this work with a better connection. Maybe I need some sort of tablet computer for this kind of work, smaller, more portable, less precious than my laptop.

Hopefully I will revisit this site in spring 2018.....perhaps I will do some editing during Craft Napa, as I did last year.