How I detest these ‘I am not a robot’ tick boxes (they accompany all GNs competitions now). When trying to tick all the right squares when using my iPhone or iPad, the boxes are so small that they have to be enlarged with the ‘pinch and drag’ method and even then it’s sometimes difficult to see all relevant boxes. Do they really prove that I am not a robot?
The point of it really is to prevent the form being "filled in" or intercepted by a robot - there are roaming "bots" on the net which are on the lookout for forms like these, to try to infiltrate yours or Gransnet's systems.
It is to prevent the 'bots doing an auto-fill (by the multi-thousand) on such pages. If these pages did not have a "proven human reaction" box, their servers could potentially be brought down by the mega use by bots.