Quote:
Originally Posted by prasunsen  As for Drupal, think twice. Modifying it's code can be quite painful. Changing hosts can be a nightmare. I had a site using Drupal and after trying to do some changes figured out it's less costly to have my custom CMS. |
You shouldn't modify the core because that would make the system proprietary, instead develop modules which extend the functionality of the core and then people can develop your modules even further and be used by the community.
I personally never experienced any problems moding Drupal, it's just about reading the right material and having knowledge of the technologies the system uses and how the system functions.