I believe the dolmen xp was nerfed some time ago. About the same time that the rubberbanding was going on (characters with autoshoot aimed at the dolmen, using a "rubberband" around the mousebutton for continuous unattended fire).
Later they added the static electricity under stationary players as well.
First clear of dolmen give far more xp.
Afterward XP on dolmen depend a lot on how many mob spawn, if you solo it fewer spawn, 3-6 players and you get more mobs, if you do lots of aoe you should get xp from most, if it become an zerg you are not able to damage most mob enough to get xp from them.
Or, perhaps their 'enlightenment' was used up. That's the only time I noticed XP dropped... when enlightened I was getting 30K+ on dolemen completion... when enlightenment was used, it dropped down to 9K per completion.
CP: 2105 ** ESO+ ** ~~ ***** Strictly a solo PvE quester *****
~~Started Playing: May 2015 | Stopped Playing: July 2025 | Returned: March 2026~~
Or, perhaps their 'enlightenment' was used up. That's the only time I noticed XP dropped... when enlightened I was getting 30K+ on dolemen completion... when enlightenment was used, it dropped down to 9K per completion.