The languages may not make money for the corporation sponsoring them, but they can be used to implement corporate strategy for competitive advantages and you wo

The languages may not make money for the corporation sponsoring them, but they can be used to implement corporate strategy for competitive advantages and you would never even know. The risk you're taking using a language like this is that the sponsor does something with it that is in their best interest instead of yours without your knowledge. When I started in software development in the late 90's, avoiding proprietary software was a best practice. SQL - great, open, use freely. TSQL and PL/SQL - avoid because of MS and Oracle.