Making a short summary before a set of paragraphs?
Ah, it's just LateX's \paragraph{} command.

It's not the most widespread style, but I think it's clearer, too, and I suggest you to go on using it.

What problems could there be? I can only foresee issues with journal articles, if you encounter overzealous copy-editors. A good card to play is "if your house style contains \paragraph{}, I am using it".