~alex Thank your writing in english, you will see that this will help you in time to improve your english, and along with this the comunications will have no limits.
To read the coments of your blog i use google translate, and as ai undesrstand that madzialenaaaa wrote, dont be sure that not everyone will know, they will use translate also.
But to come back, you can write both polish and english, write what you feel in polish, and in the end make a short note in english.
After all it is your blog, i will read it anyhow ;)