The OP is a woman. Didn't even finish reading the post, nor any of the replies. Just wanted to point out this sentence:

WE built a playset for our son in our backyard and apparently all the kids in the neighborhood liked it so much they've made it their daily hangout spot.

Ah yes I'm sure you built it yourselves. Having a crew come do it on a saturday for you doesn't mean you did shit, nor should you say we if your husband did it over a period of weeks etc.

The annoying post:

We built a playset for our son in our backyard and apparently all the kids in the neighborhood liked it so much they've made it their daily hangout spot. We come home and there are bicycles blocking our driveway and about a dozen kids playing on it.

Bikes blocking the driveway is annoying but I'm a million percent sure she's exaggerating the number and placement of said bikes.

I wouldn't mind if it was a once in a while thing but it's everyday until after sundown. I can't even enjoy hanging out in my backyard because of all the screaming. I want to build a fence but my husband thinks it would seem “unneighborly”, especially since some of the parents have told us how much their kids like our playset.

Edit: wow I didn't expect this to blow up. Just to clarify (because I'm seeing this come up a lot): the rest of the neighbors have a very open “come over and play whenever” policy so the neighborhood kids are used to that. However the other playsets are relatively small so they don't get a big group of kids hanging out at one of them constantly.

Wow I didn't expect this to blow up

Our son is 2 so he doesn't go out without supervision, and we (the parents) just didn't feel comfortable playing in other people's playsets without the owners there.

Don't live in suburbia I guess if you don't want kids in your yard constantly. Also, building a big playset for your two year old, much bigger than the other parents' sets. Had to thrown in how theirs is better than the rest in the neighborhood. I hate reddit and regret checking it.