Hi Shorn, I donāt know just how much you do know and understand about about the working of this forumsā platform. So Iām just going to explain, as best I can, for the benefit of anyone reading this post and having similar issues 
Because, I think I know where your issues might lie; but do correct if Iām wrong 
There are 2 methods of posting on the forum, Creating a New Post, and Replying to an/within existing post.
I think Creating a Topic, a new post, might be where you are getting this āinterferenceā perhaps? Because there are boxes within that box, to either type in or with drop down menus to select from. And these can cover your view of the area you actually need to type in, (particularly if you are using a mobile phone):
The first box is the Title box ā¦ Type title, or paste a link here, which where you give a title to your new post.
The second box, just below that to the left, you have the Category box, where you can select a category from the dropdown box which appears when you click in it. Itās just a way of grouping posts with similar subject material into categories such āShare your storyā, āGeneralā, āFun and Gamesā, āGetting active after strokeā, etc etc, or you can select Uncategorised if you donāt know youād like it to be. So itās just a matter of selecting which category your post would be best suited in.
And if you donāt select a category at all, itāll just default to whatever is already in there or Uncategorised.
The third box, right beside it is for āoptional tagsā, a useful aid to refining a search for a particular issue or whatever. You can either select from the drop down menu or add your own. But its not compulsary.
I tend to ignore the tags and just go straight to the fourth box which is big main one Type here text box to start typing my message
Categories can make it easier for searching certain subject matter but because we are stroke survivors we can easily be confused, bedazzled and befuddled by how the forum work, particularly as we have such a tendency to accidently click on things and in areas we donāt want. Then drop down menus suddenly appear and you wonder what the heck just happened and where the heck do I actually type. I did it so so many times the early days post stroke and cried many tears of frustration.
The second method much simpler, which is when you are within a post, reading it, and want to post your response, Reply. Itās just a matter of clicking on the blue Reply button using either the one at the bottom of the string of replies in the post, Original Poster (OP)
Or, if you want to respond to a particular member, as you @Shorn have just replied to me, you click on the Reply button at the bottom right of their text box and you get something like this:
And you can just click/tap in the box and start typing where it says
Type here.
And of course with the text box, you have formatting buttons for Bold text, Italics Headings etc etc to play around with and confuse you further if you accidentally click on them and donāt know what theyāre for 
Fortunately for me, Iāve improved to such an extent that I now recognise and know this forum platform quite well. It took about nearly 2yrs to realise Iāve used them same elsewhere. Once Iād realised this, I could set it all up to how I used it on another forum several years before my stroke.
Anyway, I hope Iāve not confused you further in my response and that you might actually some enlightenment out of it 
Lorraine
it will improve. Stay positive, that works too 
