Thanks for the leisure key comment, good catch, I fixed that. I added also the mapcomplete link

All right, I removed relations from here

I agree, but relations appear in the wiki, so I mentioned them here

I'm not from UK, but this problem applies here too. IMHO the fact is that those paths are constantly changing, so you should check them in every season. That's why it's hard to map them. And verifiability as you said it's often nearly impossible, I mean, the path is in this way, because when I mapped it you could only pass there. That's way I decided to map paths only in the area where I grew up, so I can tell whether they stay the same year after year or not. Local knowledge is the only solution in this case; the verifiabity issue is still open though. Hope my English is at least understandable ;-)

great job thanks

or you could try to save the changes list and then check if you found the collisions and delete them in the xml file. It's not really user friendly but I've tried once successfully