I have a bit of path that takes me past a red light, and have no qualms about using it. It's very obviously a cycle path, as the on-road lane leads straight onto it, as the pavement sticks out at that point - to avoid it I'd have to ride out of the cycle lane on the road (which I could, but why bother if it means stopping). It puts me back on the road in similar style, a few yards later.
The only odd thing about it is that it's two-way marked with arrows showing which side to ride - and they are the wrong way round - you would pass left to left. But I've never seen anyone coming the other way, because, well, it would lead straight onto the wrong side of the road...
And it's not RLJing, as there's no stop line to cross illegally.