[sgn]

Hope That Help, HTH.

[kzrdude]

"Hope this helps"

I see it with HAND "have a nice day" too

[_puk]

I've always read it as "Happy To Help".

I see that's wrong, but ignorance has made the internet seem just that little bit warmer all these years!

[gwd]

I think it could probably mean "Happy to help" if said in response to a thanks of some sort. Saying it before someone has said thanks is a bit presumptuous. :-)