There is no consensus among academics about whether people should seek to make their publications least publishable units, and it has long been resisted by some journal editors. Particularly for people just getting started in academic publication, writing a few small articles provides a way of getting used to how the system of peer review and professional publication works, and it does indeed help to boost publication count. But publishing too many LPUs is thought not to impress peers when it comes time to seek promotion beyond the assistant professor (or equivalent) level.
There is no agreement among academics regarding whether individuals should aim to produce their publications as least publishable units, and it has been opposed by some journal editors for a long time. For those just beginning in academic publishing, writing several small articles serves as an effective method of familiarizing oneself with the peer review system and professional publication norms, which indeed aids in increasing the number of publications. However, producing too many LPUs is believed not to be impressive when seeking promotion beyond the assistant professor (or equivalent) level.