Thank you :)

Yes, although it's affordable for me it's certainly still a significant expense. I hope that by the end of the series, even people who aren't very confident with the tech will be able to make a value judgement, and decide if it's worth investing in a server to become a witness.

There is also the opportunity to host your Witness Node at home, if for example you have spare hardware to build a machine, and somewhere to put it where it won't bother you with fan noise, etc!