@immatthewj ....You're not the first to comment & query about that habit; just showing my 'digital age' I guess...
Ones' upon a thyme, when 'forums' like this one was shiny and new, 'participants' in what was known as 'webchats' used to convey emotions, reactions, and general 'knee-jerks' by enclosing such between asterisks (*) to illuminate same. On occasion and by depth or shallow-ness of that, the enclosed could be very brief or 'ramble' rather lengthy. Some could contain jpg, mpeg, or 'other' that could cause a 'seizure' in the computer of the targeted individuals' computer by its' download size.
...and emoji didn't exist at the time. So, one got 'creative' (some say 'cretinish', but they've faded into the 'old F-ers' that Still 'exist' on the 'net confusing and confounding the 'newbies' with the arcane expressions of a bygone 'micro-era' of the 'dig it' age...)...
I dunno....you tell me what's harder to cope with.... ;) *LOL* = Laugh Our Loud
(It was to save keystrokes....) ;)