What are all these text replacements like this @@@@@@?

[UK_EX]

I keep seeing text replacement like "@@@@@@" and "HHHHHH" ......... what's that all about?    Why?    

Can't we be explicit about sex any more?

[Naughty Nicki]

I'm curious about it too. 

[UK_EX]

22 hours ago, Hotwife/cuck luvR said:

I'm curious about it too. 

Well I have found out what this one is ....

 

@@@@@@  is  ex-pose

[Naughty Nicki]

Wonder what the hhhh is then?  

[newtothis13]

I think hhhhh is "h umiliate" and uuuuuu is "un aware". A lot of bizarre censorship! Maybe they're just trying to cover themselves