Replace Textile with WYSIWYG editor – part 3 – enabling WYSIWYG in frontend.
Notes:
1. it's still a bit buggy: clicking on 'Verify ad' for the first time results in a validation error. Clicking it again works
2. it's very unsafe: no HTML stripping is performed.
My client doesn't plan to use this feature (frontend posting) at all, so won't be fixing these bugs now (although I believe it should be quite trivial).