When you do PvP it keeps track of how much damage you do in a competitive environment. On one hand you can use it to see who is afk/etc and rightfully report them. On the other hand someone could get mad and harass someone for doing low damage and this person could get reported, this is the same logic for not having it in other content to avoid this...

So my question is why is this situation acceptable in PvP, which is more likely to create toxicity due to the competitive nature, but not in the other forms of content?

If I do 1m damage in PvP what is my takeaway from that? A pat on the back? Why is it there? Kills/Assists are being tracked for achievements so it could be useful seeing it per match but what about Deaths? Wouldn't seeing deaths encourage toxicity or discourage playing, for example the same reason why they have losses hidden I guess? I'm just being pedantic.

I guess my real question is what purpose is the stat tracking in matches for PvP serving that wouldn't serve the same USEFUL purpose for dungons, trials, and extremes?

Why couldn't they do a similar system where at the end of clearing the content it would pop up the same type of statistics, for example the statistics that are tracked by a certain other website. It wouldn't be available in real time so it would only matter if you actually manage to beat said content. Or at the very least only show your personal statistics if you really want to avoid toxicity but I think seeing the whole group is obviously better.

Now someone could be toxic after you clear if the whole party is shown, and that person would be reported, but that's exactly how it can already occur in PvP. So why not?

The other thing I would point out is why aren't the names/servers hidden in PvP if they truly wanted to avoid toxicity? I'm pretty sure this was a thing in the past, so if they cared wouldn't that same logic apply to this? To be clear I personally don't care about the names but just making a point.

TL : DR
I'm not trying to just have another topic suggesting to put "DPS meters" in the game, but more that why is it available for PvP, a place more prone to toxicity, but not the rest of the game? It clearly exists...