> [Disrupt] the services by placing an undue burden on a Project website or the networks or servers connected with a Project website;

Two things:

  1) The English wikipedia *alone* gets 250 million page views per day !  So you would have to be doing an awful lot to cause "undue burden".

  2) The Wikipedia robots.txt page openly implies that crawling (and therefore scraping) is acceptable *as long as* you do it in a rate-limited fashion, e.g.:

  >Friendly, low-speed bots are welcome viewing article pages, but not dynamically-generated pages please.

  > There are a lot of pages on this site, and there are some misbehaved spiders out there that go _way_ too fast.

  >Sorry, wget in its recursive mode is a frequent problem. Please read the man page and use it properly; there is a --wait option you can use to set the delay between hits, for instance.