Ha! I think we've discussed a bit of both. Whichever post IS the Punday post is where you'll submit your puns, but we've discussed sometimes its being @FreewriteHouse, sometimes @improv still. I'll surely always post a link to it if it's not on my page, though, so just keeping your eyes peeled for my posts will always lead you down the punth.
Two puns dipunned in a pund, And I--
I took the pun less trapunned by,
And that has punned all the differpun.

Here is today's Punday Post! https://steemit.com/contest/@improv/punday-40-huzzah-for-multiples-of-10-hi-freewriters-and-punsters-what-a-wonderful-way-to-start-your-week-hey