Yes, that is a possibility, but even in SV4 you are able to see the quality of PC the other person has, so you can decline matches of everyone below A grade. I think there will even be a setting for matchmaking to automatically exclude players with lower grade PC from playing with you. I wouldn’t be surprised if you could exclude a platform completely.
Another point us that a much larger portion of players on PS have horrible wifi connections, so these two balance each other out I guess lol.
Hacking is not exclusive to PC as far as scripting and toolassisted crap goes - original toolassisted players were on Xbox. The other issue was hacking the leaderboards, but that was made easy due to the game not being designed to run on steam in the firstplace, so it had loads of backdoors to make pointhacking possible. It also only affected leaderboards and not actual ingame scores, which made irrelevant, really.
There are bad players on every platform. What difference does it make whether you are playing a bad player on PC or console? I mean today, if you play a 4K PP on XBOX or 4K on PC there may be a big difference, but that is exactly because they are on separate platforms. If both PC and console players are on the same platform and in the same rating system, points or rating or skillgroups or whatever they will call it, will be the same for everyone, so it would not make a difference ( for example that 4K PC player would just be 3K instead and the XBOX one would still be 4K in a system like this )
I think any shortcomings of cross-platform play can be avoided with some really basic settings and matchmaking tweaks and atm there is no point crying over unmilked milk.