I feel your pain Chris! I pass my comost through a drum sieve before using for seedlings, so I'm actually squashing and abrading the poor sods to death
I just chuck them onto the garden in the hope that they'll join the rest of their compost worm friends under the mulch, or get eaten by the birds as payment for their insect patrols.
While it feels a bit brutal, I know there's a zillion more breeding
right now in the bin.
If I wasn't sieving the compost, I think I'd just leave them in. Worms only eat decaying stuff, so the seeds are fine.