- All of my production databases are using MariaDB. It is currently the default database of Cpanel & VirtualMin, hence it would be easier to transfer database with the same database engine.
- MariaDB has some storage engines out of the box (ie. RocksDB, Tukodb -- for write intensive apps). I haved used these in production databases and it would be great to test this in a development machine rather than spending on a VPS to run and test on these storage engines.
- MariaDB has galera cluster out of the box (since 10.1 I think) -- I'm using these in some of my databases.
- Some minor annoyances in MySQL that we don't need (ie. ONLY_FULL_GROUP_BY config setting)
- MariaDB is performant out of the box
While it may not be a deal breaker in indigo stacks not to have MariaDB, having it, would be certainly be easier for me to transfer a MariaDB database in Dev to production and test some features which may be used in production.
PS. MariaDB was created to be a direct replacement of MySQL so I think your support would be the same as that of MySQL