I agree, this is dangerous code. There are reasons that programmers have to be somewhat careful when writing things like spiders and so on, and one is that they don't want to overload the server.

Whilst this only does one request at a time it does keep up the continual bombardment and is liable to get you in the bad books of the person who actually runs the server, to say the least.

If this was done with even the tacit acceptance of the person who's counter it is then they could well end up having their account revoked.

Be careful with this kind of stuff.