I've made a product which uses Postgres' unique capabilities (It's the only one with transactions covering DDL). Side-effect: Not supporting all DBMS is a no-no

I've made a product which uses Postgres' unique capabilities (It's the only one with transactions covering DDL). Side-effect: Not supporting all DBMS is a no-no when you need funding/convincing anyone. Hence the lowest-common-denominator race for most software. Mine is doing well, thank you ;)