Meh. Not that tevian is coming back, but he/she seemed to be comparing apples to oranges and getting mad about people pointing out the flaw in his/her complaint. He/she wasn't being picked on so much as being corrected for giving out incorrect information.
With regard to license conversion, it's simple:
If you're from somewhere that doesn't have to take a driving test to trade your existing license in for a UK license, you can do so and not have a probationary period.
If you're from somewhere that isn't allowed to trade your license in for a UK one, you're going to have to take a test, and the license you get will fall under the same rules as everyone else who has to take a test.
You can get mad about it, or just accept that that's the way it is and move on with your life.