Thanks for your wishes!
1. I can not input an enter key. When I input the enter key on the form,
it seems that a carriage return does not work well.
I assume you are talking here about Login form. Yes, at the moment pressing Enter key does not highlight LOGIN button, but the key actually works. You just need to wait until the page refreshes. This annoys me too and I will try to address this.
2. It seems that a lot of unread posts appear on my account.
I have already read these unread posts, however I do not know how to change these posts to read posts.
This is the result of site migration. For now just click button "Mark topics read" at the top of every forum and the issue should be fixed. I will look into this as well to get rid of this inconvenience.
Apart from this I need your approval on the content of article Tera Term - Terminal Emulator for Windows
. Please read it and let me know if you want me to change anything.