@PBo83 - I find that the acronyms make it easier and quicker to use MN - after all, it is quicker to type dd1 (7) than my eldest daughter, who's 7, or dh rather than dear husband.
It is a shorthand that most people here understand and are happy to use - but it isn't compulsory. If you don't want to use them, don't use them. If you really can't stomach even reading them, there may be more of a problem, because they are very well established here, and I doubt MN is going to change just to suit a very few posters.
Incidentally, I happen to think it is rather rude to join a forum and almost immediately start criticising the basic functioning of the site - it smacks of arrogance, I'm afraid. It looks like you are saying "I am new here but I think you are doing this all WRONG and I am going to come in and tell you why you are wrong, so you can all see the error of your ways, and start doing things properly! I don't care that this place has been working just fine the way it is, prior to MY arrival, nor that it suits the majority of its users - I don't like it and I think you are all stupid (aka users of cringey and vomit-inducing terms)".
No website/forum is going to be perfect for you unless you start it yourself and restrict its members to those who agree with you - just like no restaurant menu is ever going to be perfect, with all the dishes everyone wants on it. We have to look at the menu (or the website) and decide whether we like enough about it to want to stay, or whether we are going to go and look elsewhere for somewhere that suits us better. Nothing wrong in doing the latter, or suggesting someone does the latter - we are all different, and no website can suit us all.
I happen to think there is enough that is great about MN - the support, the humour, the work for charity (look up Woolly Hugs and see what the MN craft massive get up to), the intelligent and challenging debate on all sorts of things - that, if there are things that are less than perfect for me, I am happy to put up with them.