In terms of the formatting issues @Travisty, you can either copy the actual text by clicking and holding down the left mouse button while dragging the mouse over the text, then right-clicking on that highlighted text and choosing "copy", rather than taking a screenshot of the text, and then paste that text in, and if that doesn't work, try "Paste as plain text" which comes up as an option below "Paste" when I right-click.
You may have to copy and paste the text separately to images however, so each image may need to be copied using "copy image" rather than just "copy" but the text can be copied using the plain "copy" option. When there are a lot of images, this can become time-consuming, but I have found it's the only way to ensure that all of the images end up in your straw / valuation / forum post / reply.
Regarding straws and valuations, you can make those private, which is a toggle switch at the bottom of the text field box, so down the bottom to the left of the "Save" button which is coloured orange and may instead say "Post" or "Add Valuation" - so the toggle switch you're looking for here is called "Privacy Settings" and if you toggle that to "On" it will be private, and "Off" makes it public, then you can edit and then resave a private straw or valuation as much as you like and nobody can see it but you, then when you're happy with the final version, go back in and edit it again and this time toggle "Private" to "Off" to make it public, and then save it one more time and everyone else will then be able to see it. The bad news is that this feature does not exist for forum posts or forum replies like the one I'm typing right now - forum posts and replies can't be private, however the good news is you can go back and edit forum posts and replies as much as you want without affecting the "like" count. To be clear, the "like" count resets to zero every time you edit a valuation or straw, but not when you edit a forum post or forum reply, so you can go back and fix up errors such as spelling mistakes or gramatical errors any time you like within forums.
Hope that helps.