Real databases have real features like transactions, and guaranteed writes to disk, and not retarded security. Crazy shit like a commonly-used query language and tool support.
Yes, it works for free users now - at least it worked for me (I have since gotten an account.) I was using the Windows client via Wine, which worked surprisingly well until an update killed it a few months ago. During the same update, however, the Linux Preview began working for free users. I'd try it again if I were you.
It worked for me on ubuntu as a free user, even though the site said it wouldn't. I did experience issues with the ads getting stuck visible over the interface, but the audio worked fine.
That's surprising because I moved away from the Wine version specifically because the ads used to get stuck over the interface, even when Spotify was not in focus. With the Linux preview I never faced those issues again.
Since my comment (parent) is being downvoted, I will elaborate. In the situation under discussion (deletion of a to-do item) a deletion will never free up a significant amount of any resource (e.g., memory). In those cases, it is pretty obvious to me that keeping the data and metadata of the to-do item around so that the user can undelete it is better than popping up an alert.
It got downvoted because HackerNews isn't like Reddit where you comment for the purpose of just speaking your opinion. I learned this the hard way a few times. Unless your comment contributes something to the conversation it's just noise.
A rule of thumb is basically: Unless you have something important to add don't add anything, otherwise it's just more mediocre comments to sort through. That's why HN has good comments and less noise. Whereas at Reddit and forums and comment systems on other sites, everyone and their grandmother chimes in. Creating a monstrous wall of "thank you"s, "neat", "I agree"s and other babble.
