I used a craigslist posting service called AutoPoster last month, and it was decent. Not perfect, but better than doing it myself. It cost me $40 for 8 posts, and only one got flagged.
One thing I learned: avoid using too many emojis in your post. Craigslist hates that for some reason.
One thing I learned: avoid using too many emojis in your post. Craigslist hates that for some reason.