I am a Witch, not wiccan. Wicca is a religion.
When you initiate someone first degree, the karmic feedback of all of the initiate's magical acts flows to the one who initiated them, until they attain second degree. Thats a lot of trust and responsibility to ask of a stranger and someone who would give you that probably doesnt understand it.
For that reason it is often best for the seeker to find a way to initiate themselves, deal with their own learning curve karma and then seek additional training. Self initiation to pagan first degree is perfectly valid, and extra points for paddling your own canoe. If your intention is sincere, spirit will respond.
I have to admit I didn't fully believe your biography at first Mystress. I very much believed in you being a shaman but a witch less so. With your 2nd paragraph I must say that not only are you a witch but you are an exceptional being with a clear understanding of the laws that are intertwined.
It is the master's choice in reasons why they would allow their own karma (although we all share the same karma) to be influenced by a strangers. It would require an extreme amount of trust. A friend/teacher of mine (he does not teach me in actuality but we do meet every now and then. I call him teacher out of respect as he is wise with great advice for others
and old) told me that his teacher who past away has scolded him numerous amounts of times in different planes for showing off too much or leaking the mysteries of the universe to those who may abuse those teachings. He ended up losing his abilities for a while and now has even more abilities than he had before. So also to keep in mind is true masters/teachers are also there as guardians for you and that if you do find one they will have your best interests at heart. Although it is ironic that their own karma would be affected so they may just have ulterior motives hmm?