[cmsd2]

The Guardian style guide is the only one of the newspapers for which I could find an entry on this.

https://www.theguardian.com/guardian-observer-style-guide-e

It recommends dropping the dots. I know we were taught in school to treat them as abbreviations and therefore include the dots so I'm not sure where this new fashion comes from.

[wtbob]

Maybe that's just the Grauniad codifying their well-known propensity for typographical error, though.

[MLR]

Just the current trend I think, hyphenation of words seems to have gone out of fashion too.