It still has some features over PostgreSQL that pushed me to choose it (actually MariaDB) for a new project about a year ago, namely multi-master replication. Yes, I know, terrible database and horrible feature, but it really helped in that particular domain.
I couldn't find anything decent for postgres, while MariaDB/MySQL have that built-in, with some differences in implementation. Especially for a customer who refuses to pay for his software, because there are some commercial solutions.
Nowadays I would still use it because I assume it is the dumbest database system and that's exactly what I need for my 1-5 user app.