I have seen many people examine other people's dps rotation by just looking at their world of log records. They are able to identify which abilities they spam, how often, when, etc..
When I look at a report, I am only able to see their DPS and their most damaging abilities. How do you guys read the logs to understand other people's rotation/spell usage?
Good way is to look some top ranked player and see how much of their damage comes from certain abilities (% of total damage) and compare those, not perfect but gives you some direction. Also look how long does the encounter take and compare how many times they used their abilities and cooldowns.