1.  When replying with a quote, the cursor (where your typing will begin) is on the line directly below the quote and indented one space.  IMO it would be better if it were one extra line below and left justified (no space) which is where one wants to start typing anyway.

2.  When replying, the text effects, emojis, etc. are now at the top of the post so that one has to scroll up to access them (and back and forth if you are performing more than one operation) rather than just selecting them from/at the bottom of the page which is the location of the cursor/text that you are trying to modify or the place where you are going to insert an animation, picture, etc.

3.  When modifying text (bold, italic, etc.) under the old site, the text selected for modification remained highlighted so that multiple effects could be applied w/o reselecting the text.  Under the new site, once an effect is applied the text is deselected and the cursor goes to the end of the previously selected text however, it is still inside of the "close block" for the given effect...so that one has to move manually move the cursor outside to continue with normal text.  The behavior should be modified to be one or the other:  keep the desired text selected (old style) or deselect and move the cursor outside of the effect.

4.  The "Report", "Next Page" and "Subscribe" buttons are all located annoyingly close to each other at the lower, right hand corner of the screen.

I'm constantly hitting the report button while scrolling down threads while holding my iPhone in landscape.

Annoying