On that note, it might be worth actually implementing it. Since, one could argue that by not having something like this in place it could encourage centralisation as you're potentially putting those with less bandwidth capability out of the picture. I know it's probably not a huge problem, but something to consider at least.
Yes, very good point! We talked in the past about e.g. people with bandwidth limits and total data limits and such. While tedious, they could e.g. set it to a speed that only downloads 5GB a day or so, to complete IBD in a bit over 2 months if that's the maximum their data plan or bandwidth allows them.