Matsuri is an extremely competent user of Blast.

"And preferably in the company of a competent magic user," added the elf, patting the girl on the shoulder.

This is perfectly achievable using freely available software and their configuration can be automated even for non technically competent users.

Am I supposed to be solving your crime for you, or just trying to get this system back to where a competent user can deal with it?

A competent user is able to reproduce material learnt in a workshop for later use.

Alternatively it is possible for a technically competent user to buy and install a new battery, which may invalidate any remaining warranty on the iPad.

As an alternative, competent users may send abuse complaints directly, acting as mailbox providers themselves.

But good usage is defined by what competent users of the language actually do... and investigation of that reveals this to be a made-up distinction.

The program seems to have been created with competent users in mind.

A competent user can replace the PROM battery and reprogram it.