Can you elaborate on that? What's missing from CE that makes it not suitable for production? Thanks for your input.

One of the biggest issues is that deletes aren't durable in the CE edition. The index entry will be removed but the key and data remains, and may or may not be reclaimed by a background compaction process. If the server restarts before the data is compacted, the deleted data is revived because the index is recreated.

Amadeus uses community in production, they recently published a blog about it. I believe Rubicon project does too. Expiration works great for a lot of data sets, compared to explicit deletes.