I guess many people may not understand the meaning of "feedback".
What is being looked for is the
person's experience during the entire attunement session.
If one really goes through the attunements properly and received it with a grateful heart, one will definitely experience something. That is what feedback will be. A personal experience with the attunement that you are receiving.
If one is lazy or indifferent to share an experience, then i doubt one will practice the system sincerely after attunement.
The sharing of one's experience is a
gesture of gratitude to the person who offered the attunement.
Personally, the sharing of experience also encourages the person offering attunements. It encourages them to offer more and share more.
Imagine if you keep giving someone a gift and they never say thank you or show appreciation, how would you feel.
During the registration for an attunement, you would have
agreed to share feedback after an attunement.
By giving an feedback, you show your sincerity to receiving the attunement.
I do understand the frustrations of the moderators. They are keeping the forum running at the own personal time, and giving their own personal time to share and prepare all these lovely attunements.
In return, they ask not much, but just a feedback on the experience of the attunement

May Love and Light always be with you.
May you always be guided to the right path.
Many blessings
xian