Gate-raiding question

[steelwing]

What are the reasons for surgically knocking out a warp gate?  If a planet isn't a direct threat to your homeworld, do you need to gate-raid it?

[WingedKagouti]

You usually Gate Raid to direct incomming Waves to a single heavily defended location (and preferably in a way that lets the defenses cover all possible entrances). Just remember that Threat will still attack other locations if it gets too high.