Sometimes it is useful, but sometimes it is detrimentary (when you don’t realise that the “full implications” are not actually implied, or believe that they are enough to paint the full picture). In general, it’s better to be aware that you add extraneous information, and be able to remove it at will, and discern whether or not you want to do it.
Sometimes it’s useful to add “irrelevant” information to better visualize the full implications of something, i.e. fill in the gaps.
Sometimes it is useful, but sometimes it is detrimentary (when you don’t realise that the “full implications” are not actually implied, or believe that they are enough to paint the full picture).
In general, it’s better to be aware that you add extraneous information, and be able to remove it at will, and discern whether or not you want to do it.