98% of "web Programmers" wouldn't know a good database if it dragged them out of the parents basement and gave them a blow job.
I would not recommend using Oracle to run a simple web site. It is complete over kill. I would not recommend using MySQL / Maria to run the VISA processing center either.
99.9% of application builders do not even know the value of a good, much less great, DB engine and that is proven out time and time again when you look at their DB schema and all you see are tables. They all insist on doing EVERYTHING on the front end and never get , even when advised about, the amount of power that DB's like Oracle, PostGres, MS-SQL, DB2 and even MySQL have these days. One well written Stored Procedure ( Oracle Speak ). Package ( Oracle Speak ), function ( PostGres Speak ) or Procedure ( MySQL/ MS-SQL Speak ) can eliminate 1000's of lines of java, python, ruby, php ( pick your language ) front end code, and perform the function 1000x faster and more reliably.
Every tool has its use. When you need massive scaleibility, up time in the 5 9's category and support RIGHT FUCKING NOW WITH AN ACTUAL ENGINEER when you dial the toll free number 24/7/365 you get the big dogs like Oracle,MS-SQL or DB2. If those factors are less important then you have other choices like Postgres ( they REALLY need to fix the TXID issue ) which is very powerful but lacks the kind of SLA's that you can get with Oracle / Microsoft. If just getting feedback from the support community is fine the MySQL / Maria are fine choices.
I design VERY large databases that push DB's to their limits. Google had to design their own because nothing off the shelf or even from the FOOS community could handle their requirements but it takes a small army to deal with it and most companies don't have the resources or don't want to have that many people on their payroll.
The bottom line is use the DB that fits your requirements, fits your budget and has the support organization around it so when you have a problem your requirements are met, and it really does not matter who you get it from. Don't be religious about it. ALL of these companies are trying to build the best product to serve their market and that is the bottom line.
Michael Widenius is nothing but a little bitch. He sold his DB to sun for how much again? 1 BILLION dollars I think it was. Now shut the fuck up, go sit on your riches and do MariaDB if you want but stop bitching about what happened to MySQL because he YOU are the idiot who cashed in and sold out.