I bought the Tarp to wild camp more but as you say, would it work on a site? I've seen Tarps on sites but failed to notice what their owners did with their equipment when they went out for the evening. I'm hoping I can learn how to make the Tarp look more like a tent when on a site? The issue I'm thinking about are, where to leave my rucksack and would I leave my mattress, sleeping quilt and hunker on display? The thought of returning from the pub to find that my bed for the night has gone for a hike is not a good thought. I'm not particularly worried about weight, I travel light anyway but obviously it's a consideration.
Maybe the 'answer' is to take my rucksack with me? I don't think this would be too much of a hardship, I quickly get organised, even when its dark, I just need to re-think torches!
If I start to regret my Tarp idea, I'll just revert back to my tent.