E.g. the English Wikidata description for Pierre Omidyar is "eBay founder, American entrepreneur and philanthropist"; "eBay" is one of the rare examples of a proper noun starting with lowercase. The Android app (possible iOS as well, I couldn't check) uppercases the descriptions so you end up with "EBay founder...". It's a minor issue, but seems relatively easy to fix with smarter capitalization rules, e.g. uppercase the first character except when the first word starts with lowercase but has uppercase characters in it.