I wonder how bolding more on uniqueness would work? Instead of just first characters.

For instance now THeir and THere will be bolded the same, on a quick glance that can be confusing. (Using caps as HN can't do bold)

Would it increase pattern recognition in the brain if it instead was THeIr and THeRe, or some other variant where the bolding highlights the unique parts of a word compared to other common words?

Well I wrote the idea here, so don't try patent it, hehe.