We have a question about the usage of I versus me, and a question about they versus them. The questions are similar, as in both the cases the question is about when to use a personal pronoun in the subjective case, or in the objective case.
It would be good if the answer for the first question would report a sentence like you use "I" (and similarly, "he", "she", "we", and "they") when […]; at least the answer would (probably) resolve the doubts about when to use they or them.
I understand what it's not possible in all the cases, but in some cases it would be useful (for who asked the question) to specify if the answer is valid for the specific case, or it's part of a generic case.
What do you think?