So, I tried to run this query
which has many views (so I assume it's popular), but I get a message saying:
The query processor ran out of internal resources and could not produce a query plan. This is a rare event and only expected for extremely complex queries or queries that reference a very large number of tables or partitions. Please simplify the query. If you believe you have received this message in error, contact Customer Support Services for more information.
Now, true, that's not a trivial query, but is it really that bad? There isn't even a Join or anything.