There is so much you can put in a title.
Calling it as "clickbait" is too much.
They are simple instructions to get the maps of a continent online.
"Your OpenStreetMap server in 120GB" is only 35 characters, out of 80 allowed for the title, so there's plenty of room to be more specific. "Your OpenStreetMap server of Roads in Europe in 120GB" is still only 56/80 and is much more accurate.
I never said it was clickbait, that was the GP comment. And if you're going to refer to the guidelines:
"Otherwise please use the original title, unless it is misleading or linkbait."
One could make a reasonable case that the title of the source is misleading because it is incomplete, so the additional specificity may be warranted.