I really wanted to like this software. I honestly did. I did my absolute best to work through its awful problems and I just couldn't. To put it simply, this software just doesn't have enough of anything to be on par with everything else out there. There are so many areas where BlackInk is lacking and it's unusable. Here's a list I've compiled of the gigantic flaws in this software.
1. The eraser tool doesn't erase your single layer. It erases the background as well, so instead of you removing the mark that you had made, it does that and it also removes the background along with it. You wind up seeing gray checkered streaks across your screen. The only work-around is using a white pencil of some sort, which isn't even remotely helpful because it's too small to erase your marks.
2. BlackInk is lacking in a variety of tools which they say they're going to implement, but they haven't even paid any mind to it. In 2012, they said that there would be this array of new tools being added, yet not a single one has appeared yet. These tools include: smudge brushes, line tools, shape tools, and complex brushes. What I've seen is that they've just been working out small glitches every six months and calling that an update. "Here is a list of what we have in the pipeline for BlackInk in the next few months". To me, it seems like the pipe is pretty clogged. If you're going to promise a community that they're getting some nice new things for the program that are essential, at least try to input one
3. File sizes are unrealisticly large for this type of program. Comparing the BlackInk save of a file (.bkd), and a JPG file, .bkd winds up being about six times larger than a JPG. This is also an unnecesarry addition because you simply don't need to incorporate a new type of file when you can save your artwork as JPEGs anyway. I don't know why you would want to have a file six times larger for the same thing.
Overall, I completely understand that this program is in beta. I get that. I've used a lot of things that were in beta. Fortunately, the things I used were passionate enough about their program to update it every few months or so. I also understand that you can't do all of it in a single day. I know things take time and that they aren't just going to suddenly appear because you want them to. But if you make a promise two years earlier for something that should only take a few months to implement, then why are you making promises at all? I honestly don't mean to offend any of you working on this project, but at this rate, you're not going to be up to par with anything because you simply aren't pushing in any of the things users would find useful. Best regards.