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Yes. This site helps you avoid common mistakes; it does not prevent you from making all mistakes.
My unscientific definition of a "common mistake" is a mistake that I remember. Considering that I have checked thousands of papers with millons of mistakes, the mistakes listed on this site are most likely very common.
I estimate that a common mistake listed here appears in at least 10% of papers (some mistakes probably appear in about 50% of papers). It’s very unlikely that a single paper will not include at least several of the common mistakes listed here.
Such information is already available elsewhere (see Resources).