There's a lot of people who are hyped into mining are now suffered big time lost on their investment on GPU, CPU, HDD and ASIC mining, I bought Dozen of GPU but a month later, GPU mining collapse. For me much better to do trading and Masternode mining.
Witnessing is like masternodes. Different tech but u still earn with funds
Gulden witness is a completely decentralized solution while masternodes is a highly centralized technic, that's the big difference.