Bad news is, thanks to a bad trio of clowns and a very large swarm of corrupters, my housing is soaked in lava and uninhabitable due to corruption. Need to rebuild before doing anymore attempts.
I have not had any direct bomb hits on my house yet, but have had a few close calls,
once I defeat the WoF, I'm making a dome of glass and placing some uncorruptible/hallowable blocks surrounding it, then having grass inside so I can have somewhere that is just normal. or maybe I'll do this before, to make it easier.
Just live in the hallow!
I am so thankful that I made an entire alt-world for hardmode. World4 is 4% hallow and 6% corrupt, and rock-steady because it's all firewalled off until I get around to destroying or converting it all.
It was hard enough firewalling all of the corruption, and then all of the hallowuption, without having to worry about downtime for inventory management, or enemies entering my main base, or
mimes clowns destroying it, or biome changes near it, or....
I think I was lucky. World4 had only one corruption area before hardmode. And when I enabled hardmode, the corruption stripe came down from there toward the center of the map, crossing my 'vator, and the hallow stripe mostly went through the jungle so didn't do much at all. It could have been much worse.
Also I have no surface hallow zones except an artificial hallow desert-on-stilts, and only the original corruption zone and an artificial corrupt desert-on-stilts.
So, you poor fools who hardmoded your homebase world: Nyah nyah! Phbbbbt!