> It may be inefficient in terms of memory and CPU resources, but it was very efficient in terms of dev time and allows for easy modification by third parties

I appreciate easy customization as much as any dev, but, in this case, I don't know if that's an advantage when as a result Atom doesn't do its primary task terribly well: stay open all day, let me type code.

Strange, I've had VS Code open for the last several weeks and it's not been an issue.

Have you ever used Sublime though? You can modify the user interface any way you want. Theming works extremely well. There's an integrated package manager too, that works superb. Sublime and Atom are pretty much the same feature-wise (they both are available to Linux too), but Sublime does it (for me) in a cleaner, more efficient and native way.

I have used (and still use) Sublime, yes. I switched over from TextMate as soon as I could.

I'm not suggesting Atom is better than Sublime, and there are definitely many cases where Sublime is better than Atom, particularly in terms of performance. I just think Atom gets more abuse than it should given how useful it is in general. Many of the complaints I see are more rooted in what they feel an app should do in the abstract (e.g. idle at under N megabytes of RAM) rather than actual issues that affect their use of the tool.