(Even though half of its users try to use it for that, get stuck, post on the forum, and then get the other half yelling at them because "it's not an NLE". 17 and 18 took things in the right direction, but it's still going to take a few more versions before people giving it a shot because they think it's a free Premiere or After Effects get burnt)
Edit, because people seem to not understand how Resolve is fundamentally different from a "normal" NLE like Avid's or Adobe's (suggesting they don't actually use Resolve, which is fine, but downvoting because you disagree is kinda weird when it really isn't like normal NLEs):
Resolve has NLE functionality, but it didn't start as an NLE, and its main focus wasn't to "be an NLE". This is first and foremost grading software, born out of wanting the best tool for grading cinema/broadcast video, the thing Black Magic sells cameras for. And of course, the best grading software needs a minimally functional edit view because you can't grade clips if you can't work with clips. And so it had that.
And while BM has been steadily improving that view and wants to morph Resolve to a more general purpose video editing suite (and in the processing become more like a real NLE rather than software with NLE functionality) you're still in a node-graph-based grading suite, just with NLE bells and whistles. A lot of what you'd do to your clips or layers, you still do in the "color" view in Resolve.
If you think you downloaded an NLE, that's going to be weird and unexpected. If you know you're working in grading software that also has a pretty great NLE functionality at this point, things make a bit more sense. Of course, the cry for "real" NLE behaviour is strong, and if many of your users want something (and your name isn't Adobe) you start adding what users want, to the point where BM now wants Resolve to become a full video editing suite, so we're getting there. But slowly. And it won't truly "be an NLE" until probably several version from now.