They will take whatever you give them. There are sensible and useful web-sites/applications out there, but they are 1:100 (or Sturgeon's law's 10:90). You can

They will take whatever you give them. There are sensible and useful web-sites/applications out there, but they are 1:100 (or Sturgeon's law's 10:90). You can limit everything for everyone and maybe give option to enable softer limits for certain sites. I just hope that it would not hurt legitimate sites.