This link includes false statements and analysis.
Metronome returns 100% of the invested crypto (ETH etc.) back to the community.
You put 100, you get a value of 80. But don´t take my word for it. Go ahead.
Wrong.
You and the author are confusing tokens and proceeds.
80% of MTN tokens go to community, 20% of MTN tokens go to founders.
100% of the ETH in the Metronome raise goes to the community.
Read the announcement and Owner's Manual:
https://bitcointalk.org/index.php?topic=2450739.0