https://eugene.kaspersky.com/2016/11/10/thats-it-ive-had-eno...
Obviously Kaspersky isn't open source, but the tiger's stripes certainly haven't changed.
Also, Microsoft bundling Windows 10 upgrade malware into its security update channel has turned me off Microsoft, probably forever. Still don't understand why installing 10 after being told not to isn't a CFAA violation.
Having a limit on the number of antivirus products a computer has makes sense, antivirus software often causes conflicts with other antivirus software, and a large amount of security software on a PC causes it to run very slowly, as duplicated scanning efforts take up a majority of drive performance on the slow 5400 rpm hard drives shipped with most consumer PCs today.
To be clear: Antivirus companies have acted like a plague on Windows computers for a long time. They use scare tactics to convince people to spend money on placebo-effect tools that rarely protect them from the type of malware they actually are likely to encounter.
One of the favored strategies is to bundle on new PCs with a short trial, and then tell people they won't be protected unless they subscribe. People aren't told that if they just remove the third party product that was preinstalled on their PC, they'll have perfectly serviceable antivirus.
That isn't to say Windows 10 doesn't have issues that still bother me, but let's just say that Kaspersky crying about them doesn't bother me much.
Windows Server has controllable updates and reboots. Win 10 - is a client OS and wasn't designed with the same level of hardening and shouldn't have the same uptime requirements.
The challenge is convincing the general public of this; people want a Ford Fiesta with the speed and features of a Audi R8, meaning they want the best of all worlds at reasonable cost and no penalties.
By forcing updates on clients, MS has eliminated a generation of machines being owned by various botnets. They've also made it relatively cheap to get a server in Azure should you have a temporary need for uptime (like a research project for a week).
That aside, some portions of those updates are bad (like removing functionality, pushing telemetry, etc), but the overall strategy of auto updating isn't a bad idea if they can convince people to adjust to it and use Server when they need stability.