Rated 3 out of 5 stars

The spellchecker is awful, comes up with outlandish suggestions, sometimes based on the first few letters typed but ignoring the whole word. Also the suggestions seem to be in length order, so will always offer two letter suggestions, then 3, then 4, even if there is an obvious 4 letter solution.
Also fails to learn, but I guess it is not designed to (e.g. I always tipe time as tiem, and the first option it offers is always item, which I have literally NEVER accepted)

This review is for a previous version of the add-on (2.98). 

Yes, sure.

Read this:
https://proofingtoolgui.org/faq.html#4

Anyway, every time there is an issue with words appearing flagged e-mail me, read the FAQ or the installation instructions here:
https://proofingtoolgui.org/en_installing.html