Multiple reports can be made on the same post, by same user or by different users.

All reports can be handled by a same moderator who is responsible for the board in which that post was made. If a board has multiple moderators, different reports on the same post can be handled by different moderators and results can be different (good or bad).

Sometimes if global moderator handles same report and result can be the same as local moderators or be different.

From report guideline of Welsh, submit enough reference and context for your reports can help.