1. Please, make all text translatable.
tffaq-questions.php. line 241.
<a title="" href="?page=tffaq-questions&new=new&cat=<?php echo $cur_category->id?>" class="button-secondary">Add a New Question</a>
Add a New Question translatable.
2. Can you add placeholders for some strings?
I am trying to translate you plugin to russian language, but in some cases it's very hard to do. Please, use placeholders.
tf-faq.php. line 252.
$subject = $cat->category.' '.__('question','tf-faq');
$subject = sprintf(__('%s question','tf-faq'), $cat->category);
In this way I can change words positions. This is what I need.