>>103608479>a non-native speaker who scored perfectly on the TOEIC and passed the english equivalent to JLPTN1 isn't the sort of person that would mistakenly use a possessive noun twice in place of a plural noun, while also using the plural noun correctly, all in the same sentenceOther way.
People who use english regularly are perfectly capable of using shorthand and being careless, especially when using their phone.
In fact, the better your english is, the more you know what you can cut out to still get your point across.