[Houshalter]

Avoiding words seems rather arbitrary. English has a lot of over-used words, for example the words "of", "a", "the", "with", etc, etc. It seems more likely to me that people just associate certain styles of writing with professional or amateur writers. Rather than the style of writing being objectively superior.

For example use of slang or misspellings becomes highly associated with the education or intelligence of the writer. This creates a feedback loop where people trying to appear as high-status as possible imitate the writing style, look up standardized spellings, avoid "less-formal" words, etc.

I'm not saying that this is true in this case, it's just something I notice.