The USA has a right on a light law for all traffic in most States and Paris is to allow cyclists to go ahead or turn right on a red light. Pilot trials in Nantes, Strasbourg and Bordeaux showed no rise in the number of accidents. Scandanavia, Belgium and Germany already have it in place. So contrary to your view that it is stupid and suicidal, it actually works well, improves traffic flow and does not cause any more accidents.
There is a significant difference between the UK and the cases you mention: Other road users will be expecting it to happen.
As things stand, UK traffic signals, junctions and layouts are designed for use within a system which prohibits the passing of traffic lights on red. Other road users will not be expecting people to hop lights.
That's a
major difference. I've driven a lot (but never cycled) in the US and am entirely at home turning right at a red signal in a car. I would never think of turning left at a red in the UK when driving.
I believe the post you responded to was made with reference to the UK, as described in the OP article. Where the law prohibits it, the poster you corrected was closer to the truth than you were.
I write this as a reformed serial RLJ-er and occasional lapsed former RLJ-er. It is stupid and can be suicidal. Worse than that, it can harm other road users too.