A neologism, by definition, is probably not going to be as readily recognized or understood by a common speaker. However, they are (for the most part) created for a reason, and thus could see some use. However, I have noticed that, not unexpectedly, not everyone is a fan of them.

For example, I have heard an argument that neologisms like "far" are unecessary because "de", and its disambiguator "fare de", already exist and would work perfectly fine. The same argument could apply to words like "ĉipso" versus "terpomfingro". Is it really all that bad to invent words like these and [these](https://en.wiktionary.org/wiki/Category:Esperanto_neologisms)? Some of these do seem to show up in the PIV (like "far"), but not all of them, of course.