"If you copied and pasted stuff from the Times and forwarded it without paying"
in that instance, they'd never know - assuming you forwarded it by e-mail, not putting it online as a posting, or via some message area, such as a FaceBook 'wall' (sorry, I've not touched FB, but know people can leave messages that way)
"(or put up a kind of 'copy' website where people could look at it for free) - would The Times lawyers be after you?"
Almost certainly.
There's been a lot of discussion since last year when News International first announced their plans to charge. Some models allow for the items to be viewed free for a day or two, and then become part of the paper's archive where access needs to be paid for.
Given the online papers still put adverts on, I think a charge of a pound per issue sems steep (if they did away with adverts on the paid-for version, then maybe a pound would be more reasonable). However for some, the adverts are useful (latest deals at Argos or wherever, perhaps), so it's a question for the customer.
Personally, I would not pay that much.
I don't take a daily paper and have bought less than 20 in 10 years or more, just get one infrequently, or pick one up on the bus or train. Only one I planned to buy was the DT special one Saturday with a pull-out about all the MPs' expenses, and even that wasn't compelling enough (given radio coverage on the day) for me to go to the shops.
There have been arguments about the likes of Google copying chunks and making them available via their sites, and I expect that will stop (only by being blocked form access).
NewsNow (a UK firm - see www.NewsNow.co.uk ) only grabs the headlines and they have an online campaign, yet even they have been threatened by law firms for some online papers.
Every few minutes they scan some 30,000 websites and check what new headlines exist, allowing you to get a worldwide snapshot of news, or under different categories (current affairs, politics, technology, etc) or by keyword (free searching limited to 1 word).
I suppose once fees come in, they might get some agreement from news sites to list items (in the past they have shown 'subscription needed') but perhaps they will request a 'cut' for traffic they send, since someone may not know about a pay-site beforehand and will perhaps pay a small fee for a day or article without starting a regular subscription.