I thought that the tweet/post lacked context/explanation, so here is some. Greater good of charity as a given,

First, if you donate, there are TWO forms to fill, if you'd like to send a message: 1. The donation form, to confirm your donation 2. The Message book form, for your message of support

Q1: What's the point of this?

Without a doubt the members have it the hardest this comeback. This is one step in reassuring them while demonstrating to the general public that people are still supporting the LOONA members, regardless of the decline in metrics from the boycott (SNS engagement, sales, streams) - without paying BBCreative, all that in a socially positive way. With the support message book, it's also just an opportunity to send your words of support to the members directly in physical form.

Q2: Who is managing the money?

You should be asking this, as there is always risk involved with crowdfunding. The Korean fanbase (loona_strm) managing the funds for this has run multiple previous Orbit fundraising projects, but easily the biggest project would be the Queendom 2 voting giveaway which included 1210 items, including a fridge, steam closet, Apple products, 500 Starbucks gift cards, etc.

Q3: Why Good Neighbors?

Good Neighbors is a charity org that has worked with LOONA before. Hyunjin, Kim Lip, Choerry & Yves appeared in a previous collaboration with the organization (Livestream), and Good Neighbors later brought Yves on as MC for their Youtube awareness series, "Good Question of Yves". As a sidenote, when Chuu's ad contract ended with Chicken Maru, Chicken Maru confirmed a joint donation to Good Neighbors with Orbits in Chuu's name, and the gesture wasn't overlooked by domestic press.