The solution ain't far away dear players.
I too have been very annoyed by that back-rushing several times. Like CT doesn't understand the fact that they have to cover the road to the bombsites, and the actual bombsites. But no, it happens less and less in-game. Players are too much in a rush to finish the round these days.
Unfortunately most of the admins does not want it back, and therefor I am asking our community instead. What are your thoughts about bringing the ANTI-RUSH function back in play, so that as Terror you won't get backstabbed every single round.
Post your opinions here.

Great ideas all over the place, however I still feel the need for the anti-rush is bigger than everything else.
Longer round times: Longer times to yawn, waiting for people to get done walking silently around.
Longer bomb time: More CT wins.
No anti-rush plug-in: CT always rushing back, at almost every round. Annoying as hell.
Bring back the anti-rush system but lower the timer, or adjust the roundtime and the bombtimer like Starmo said^.
Maybe a campertimer for T so they have to move around.. :D
I personally don't like the plugin, I like the idea but I'm simply too used to being able to push banana on inferno or push tunnels on dust2 that I get annoyed when I cant. And there's a certain thrill to rushing and getting 3-4 frags, most often you die trying anyways. (Atleast me)
I think focus should be on getting terrorists to push harder, maybe lower the round timer and make the c4 timer longer? I'm for this kind of experimentation along with plugins that let you change the time flashed and plugins that balance out weapon damage.
I’m definitly for anti-rush plugin as long as it does not interfere with the servers hitbox, lag och strange shutdown. The time can be ajusted over time to see how long it should be.