I saw that tag being used in at least the following contexts:
- Issues when loading content/resources from disk or server into an application or web page
- Loading indicators (like ajax activity indicators, progress bars and splash screens)
loadevents (such as JS
window.onload, or Windows Forms
- Preloaders (as in HTML/JS image preloading techniques)
- Assorted uses like reloading a config file, loading a program module, reading data from a database, etc.
Although all those cases might be considered "loading", IMO they're not similar enough to use the same tag. So maybe the tag should be split into several more specific tags.