Hello!
Thank you for the feedback!
That's our contribution to cover the expenses. Just check the price for each 10 Gbit/s full duplex unmetered dedicated line for 1 year to get an idea of expenses for the network traffic, then also consider the depreciation of 20 servers and their maintenance (hardware replacements, manpower maintenance hours...) over the years. It's not like managing a VPS with a few TB per month and a few Mbit/s shared line, and we're talking about exit nodes.
Kind regards