There was recently a question about Portuñol and it's genesis and usage. The argument has been made (by me) that this subject is off-topic for this site, since it's not about Spanish, but about a mixture of Spanish and Portuguese.
There are a couple languages that Spanish mix with that causes a "mixed language". Portuñol is one. Frespañol is another (French/Spanish mix).
Should these questions be on topic?
To complicate things, this site is in English and about Spanish. Should this site allow questions about Spanglish?