There are some helpful suggestions here such as a means to make use of completed saves or storage, and the possibility of editing some rewards. I might be able to do something with these.
However, it is unlikely that I will continue further new development on content that is so deeply unpopular that the responses are mainly silence and the occasional negativity.
Thanks for playing.
Don't feel discouraged, most people discuss SP in the A2 spoiler channel, content discussion, bug reports/support and/or ingame. The majority of what I've seen is usually three things: most people generally say this is really cool content and better than nexon, they question how worthwhile rewards from non-special floor chests are most of the time and otherwise post bug reports.
Personally, I haven't bothered posting much on the forums because when I did seemingly nothing came out of the bug reports I posted versus getting lucky and talking to you about them ingame.
Also, I believe Patoots asked me when it first came out how I thought while I was in a run, and I said I thought it was really cool.