That is why I said update. In the case of eol it requires OS upgrade. But I do agree with you on that there are a wide variety of ppl whom do not follow instructions well. 
When I was upgraded to admin for the company I help out for free 
I had told them for over a month straight that their forum was going to crash at some point as they did not have space needed to perform rebuild app. They had a minimal sized server(7 years ago). Iirc it had a 25g space in total. Of course they didn’t listen. And ended up paying someone in here to get the forum onto a new server. Total downtime about 2 weeks maybe a bit more.
That would definitely be cool if that can be made to work. For folks like you and I who somewhat live on here we keep ourselves fairly up-to-date B’s a lot of folks in comparison who only visit after a problem arises or looking for add-ons and other more minor support issues.
Ok will advise them. However not sure how old the backup is. So imagine in their case rsync or OS upgrade will need to be explored.
On my personal server that was nearing out of date I did a lot of reading and was careful not to web/command line update. Til I was. Comfortable using the rsync procedure. And still hada couple of minor hiccups that you and the community assisted me in debugging.
