what’s the most subtle way to get rid of rebar spikes sticking out of stuff like parking blocks?
The most subtle way is to just boost it up with a crowbar on one side, slip 2 bricks underneath it or something similar, jack up the other side, add the bricks to that side. that way you dont need to remove the spikes at all. once you raise it up like 1-2 inches, the holes will be clear and its acutally much better to skate it at this height than the "default" parking block height imo.
Would this heavily mess up the block from keeping it in place by removing the bits on top in general??
even if you take it fully off, its definitely still skateable and wont move too mcuh, but realize that ground in general is never actually 100% flat so depending where you put it , it could start helicoptering. but if you do what i suggested above, you will still have the spikes to hold it in place and it will be super solid. that is what this dude and i were going to do at a local curb, but it turned out he was a pedo and went to jail so that plan never happened :s