Do people look at a sign that says "no bigots allowed" and recognize the sign is about them?

I mean, the issue is that you're starting with the premise that some people need to be banned. And here's the thing - the biggest turn off to potential good members to your organization is negativity. Starting with "no bigots allowed" tells your prospective members that bigots commonly want to join your organization. The only people you will attract will be people who believe they need official organizational policies to protect themselves from bigots - ie, people who are huge, pessimistic downers all the time. It will fill your organization with people who are constantly looking for ways that others are insulting, demeaning, or dismissing them - which results in an organization that is highly judgemental, high strung, and unwelcoming.

Instead, successful organizations don't start with (much less advertise) "no bigots allowed". They also almost never start with "all are welcome here", since this implies the negative thought that anyone might not be welcome. Instead, they lead with the point of their organization. The Springfield Pickup Ultimate Frisbee Club doesn't start their pitch with "No bigots allowed". They start with "we play pickup ultimate frisbee in the park on Tuesdays at 6pm, it's lots of fun!" Maybe with the addendum "all skill levels welcome!"

Of course, this doesn't mean that bigots are welcome at the Springfield Pickup Ultimate Frisbee Club. It just means that when someone shows up and starts calling people the n word, they are politely but firmly asked to leave and not return, and then everyone else goes back to playing frisbee, and then talks about what a shithead that guy was and forgets about it.

That's how successful, welcoming organizations function - everyone is welcome to show up, and everyone is assumed to be a nice person. But they have standards, and they remove people who don't meet those standards.

Whats wrong with calling people nice?

lol. Took me a second

Social orgs

Is this supposed to mean smaller social media?

I was thinking IRL clubs

Something something Wendy's

I dream of a world where everyone expects to hear a stump speach when they go to Wendy's!

I see the “All are welcome here” at churches and very liberal businesses and “social orgs” was the most generic term I could come up with for churches, clubs, etc.

That's an interesting point. Makes me curious to see what would happen if I attended one of these churches in the gayest getup imaginable. Put your money where your mouth is. Am I welcome or not?

Hear, hear!

the biggest turn off to potential good members to your organization is *negativity

"These kinds of people are going to hell"

Ooh pulling out the Sunday best you naughty ;)

I'm walking through whichever door doesn't ban me for calling someone stupid

I was thinking a very large group attending in attire specific to a different religion would also be very interesting.

Side note: I always interpret “All are welcome here” to mean “All are welcome here so long as you abide by and conform to the dogma and characteristics of this in-group” in those cases.

Thanks for clarifying. I don't come in contact with the church types of social orgs at all.
Those I do come in contact with IRL are usually pretty open.
From experience, I'd say "No bigots allowed" can be tricky: most people are pretty nice and only a little bigoted in some respects. Also, bigotry comes in many shapes. People can be bigoted specifically about the things that made them come together in the first place! The real deciding factor is how they react if this is pointed out to them in a non-bigoted way.