What's the use-case? Like if you want to do a "mine cobalt" mission, but you have blocked cobalt then once you start mining you see the fragments are blocked, unblock them and carry on.
The interface is clunky, but I can't think of where it would be a problem...
Shortly after the ignore list was added, I went surface mining, filled up on iron, added it to my ignore list and carried on mining.
Over the next few weeks I used a fair bit of iron.
Three weeks later I went asteroid mining. I didn't go to get iron, but I would have been happy to have any I picked up.
Except that for about the first hour I didn't pick up any because it was on my ignore list, which I'd somehow managed to forget after three weeks. Anything on the Ignore list is greyed out and easily overlooked.
So I
can think of where it would be a problem. I'd really like a list I could inspect and edit before I go mining.