never thought of it before either, but this is something you need to be aware
of if you sell MRR rights to your products.
There may be people who buy the rights to sell your product and then don't
follow through with delivery of your product...or worse.
With your name attached to it, these customer service nightmares may
come back to you, as has just happened to me.
This has personally made me think about offering MRR or PLR rights to
anything I create in the future. Since you have no control over who
buys them, you don't know what's going to happen down the road.
Anyway, it's something to think about.