Personally, I believe the founders are open and honest. They have independent specialists who "audit" their business activity and ensure funds are spent as indicated; for example, funds are invested in servers, masternodes, and so on. They also make regular video appearances, offer members monthly updates, and keep us updated.
If you're interested in Yieldnodes and found this post useful, I'd appreciate it if you used my link to sign up.
A few new funding options added and 3 other projects will be joining the DECENOMY umbrella. Yield Nodes will be a part of DECONOMY, which is in the process of being added.
Their dashboard is quite lucid and makes it simple to track your return. Everything is upfront and transparent, and they use straightforward language (no jargon!).
Yieldnodes take a maximum of 15% of the profits they generate through their service and the remaining 85% goes to the participants. They generate profits primarily through masternoding activates and their entire ecosystem which is ever-growing, including exchange activities and projects they operate themselves and incubate such as SAPP (Sapphire) and third party coins.
This chart is available on the Yieldnodes homepage and is updated monthly. It compares how 5,000 EURO would have performed over the previous 24 months to BTC, the Dow Jones, and Gold (image updated: since September 2019).
Not only that, Urs (architect for Yieldnodes and COO), is running 2 buses for the aid of disabled refugees.