The use of upper case to spell out a word is generally taken as the equivalent of shouting (except when used in context as a proper word such as a name which normally uses capitals or an acronym). So perhaps the writer of the post is shouting to get your attention. I think it quite legitimate to grab attention in a title, but not in general text unless of course you intend to SHOUT!
Mike.X
My limited understanding of internet protocol is that capitals are usually classed as shouting when done as a reply to another poster.
This is from an internet etiquette site.
Overusing Capitals is Rude
WRITING ENTIRELY IN BLOCK CAPITALS IS SHOUTING, and it’s rude.
We’ve all done it: left the Caps Lock on while typing.
But in email etiquette, online chats and/or forum posts, writing in capitals is the online equivalent of shouting.
It’s rude, so best not to do it unless you really do want to shout at someone. Even then, consider whether you’d really do it if that person was in front of you, and also whether it will get you anywhere.
Although it’s usually best to avoid writing in capitals, it can be useful to write odd words in capitals to give them emphasis. HELP! You're going to LOVE the surprise.
