It is like people are afraid or in too much hurry to ask questions and they usually do it when it is too late.
They don't even need to ask the question. Type "Electrum 4.0" in to any search engine you like, and you will be bombarded with links to "Phishing attempts", "Serious errors", "Malware", "I got scammed", and similar. Literally 5 seconds of time is all it would take to do a quick web search and avoid this issue entirely.
Before "upgrading" to version 4.0.0, these users have, at some point, downloaded the legitimate version of Electrum, so they have been on electrum.org which tells them not to download from any other site and to always verify the signature before installing. If you give people crystal clear instructions on how to do things safely, and they still ignore them all and download and install software from random links which pop up on their screen, then nothing short of physically showing up at their house and doing it for them is going to protect their coins.