how to raise faction after killing treants

[strete]

hello friends,

i'm a pathetic lowly level 28 gnome mage (in-game). i want to kill treants because i have been promised that if they are ever not camped, i will be rewarded with excellent experience and fantastic loots.

however, right now i am regarded dubiously by my druid friends. i value our relationship and would like to remain in their good graces despite killing their sacred tree gods. does anyone know:

1- about how many treants would i have to kill to go from the awesome rank of dubious to kill on sight at druid rings? 100 trees, 1000 trees, 1?....

2- how much of an inconvenience is this if druids hate me? tbh lots of people hate me irl and it's not too bad. but i'd like to be able to get drunk in kelethin and only worry about falling off the bridges/lifts, not about being killed by some idiot guildmaster

ty for your advice

<3 aanandar <3
pathetic lvl 28 gnome mage