I'd hazard if this were Taylor Swift, Beyonce, Kanye, shit, even the Rolling Stones, no one would be using the word "forced." Sure some would still cry foul, but there'd have been much less noise about it, because these artists are still associated with "cool"
I don't know if any artist could've gotten away with it unscathed. Taylor Swift would probably be the best bet but I still don't think she would've.
Yeah, I agree with popacrobat on this point, and others have made good posts about why even more shit would probably hit the fan if Kanye or the Stones did this. As for Taylor Swift, we need look no further than the controversy surrounding the campaign to vote Shake It Off into Triple J's Hottest 100, which some of you may have seen. For those who don't know, the Hottest 100 is an annual poll run by Australian radio station Triple J that anyone in the world can vote on. It now registers over two million votes each year, and Buzzfeed started a campaign to get Shake It Off to #1 in a veiled swipe against "hipsters". The backlash was ridiculous. The whole furore was ridiculous. In the end Shake It Off was disqualified! (It would have come twelfth.)
Anyway, I do think it's lazy to suggest the negative narrative is just some thing peddled by the blogosphere or Twitter - indeed, that seems like just repeating Bono's talking point. Certainly I noticed that SOI quickly became a punchline on Aussie TV comedies, and plenty of my co-workers who have minimal Internet presence, think Twitter is stupid, and wouldn't dream of keeping a blog were poking shit at U2.
I guess I'm part of their 40 million users, because I was using it like 5 years ago. So it would be nice to know how many active users they actually have now.
I tried to find out how many active users there are, but it seems they don't publish that and all I could find was unsourced claims that it's something in the realm of over fifty percent. I suppose it's very easy for many people to just keep scrobbling after drifting away from the site, since the app works in the background. As long as somebody's using the same computer as the one they registered on, they could be sending scrobbles to last.fm five years after they forgot about the place.
Of course, for the Last.Fm stats, without total plays, it's meaningless since U2 has more songs

.
(just ribbing, absolutely not surprised by those numbers, except for thinking that fans of pop music didn't use last.fm.)
You may be ribbing, but I do wish I could've found that data! I'm sure it's out there for somebody who can be bothered to find it or piece it together. Best I can do is give the total plays for each artist of every song ever:
U2
Individual listeners: 3,267,194
Total tracks played: 129,085,810
Katy Perry
Individual listeners: 3,391,774
Total tracks played: 111,483,911
Taylor Swift
Individual listeners: 1,849,767
Total tracks played: 101,271,701
I find that fascinating, because you can make heaps out of it. Of course both Swift and Perry are at a disadvantage to U2 in that their careers began after last.fm was created, while U2 have had the site's entire existence to rack up plays. But you have Katy Perry with more listeners than U2 but less total plays, and Taylor Swift with markedly less listeners than either but nudging close on total plays!
At any rate, it suggests that per song, Katy Perry and Taylor Swift both get more plays than U2, but that U2 can amass a bigger tally of total plays as they have a larger discography.