Slog points out an anti-development poster making the rounds on Capitol Hill power poles:
The poster maker would not be the first person on the hill to decry development. But they may be the most melodramatic.

But let's put the cynicism aside. Slog has it covered. Since you asked, poster maker, you should check out a write-up we did about the process around developing new zoning and rules for development in the Pike/Pine core -- seems like a good place for you to start: How to save Pike/Pine: data, maps, proposals
The city council is scheduled to vote on the proposal in the first quarter of this year so the time to act is now. Can you translate 'queer space' into zoning requirements? Don't laugh. That's how it gets done. If not, well, there's nothing for you to do but print more posters. Me, I'd start pulling together a translation of the needs of the communities you want to protect into rules and requirements, get as many people as you can to stand behind those ideas and start spreading the word about that. It's not the boogeyman you wan to target here -- it's the Seattle city council. I'm seeing some rad poster potential with those requirements.