Hmm, i am not sure where all of these negative reviews come from but one thing is clear to me after reading a few of these 1 start reviews/complaints.
User kill_gore's complaints and another user echoed a similar statement in regards to not being able to comment on blogs and someone even said the GUI was not user friendly...
This is an extension that is extremely powerful if utilized correctly and that would of course entail reading the documentation provided by the author along with asking other users and the very responsive and generous developer who has made this open source. I am sorry but if you can't comment on a blog look into which scripts are being blocked and allow the appropriate script to run, at the same time you can make the rule temporary or persistent/permanent along with a slew of other options.
The GUI is beautiful so to say it is not user friendly please provide us with a more intuitive layout as I think this setup is easy to read and interpret at a glance even though it provides a complete "picture" as to what the JSB extension is doing, script by script.
Read the documentation, donate or use all advanced features with the built-in generously provided way of activating for free. Read the documentation... I can't say it enough, all your questions will be answered and statements of false advertising this as freeware will again be answered.
It's a shame that people will see the bad star rating from people who failed to learn the extension before writing negative reviews and if you can't uninstall an extension, which is always by clicking the uninstall button in the settings pane for that extension in safari preferences extensions tab. Never heard of a partial uninstall of an extension Kill_gore, why do you need TOTAL when the built-in process provided by apple deletes the extension which is self-contained to begin with?
Sorry for my rant, but I hate reading negative reviews and ratings for a superb and responsive developer who has put in countless hours perfecting the extension so asks if you would but does not force anyone to donate. Donate .10$ if you really wan to be cheap, or nothing, just don't expect the developer to continue keeping this extension up to date when they can get paid to use their skills providing a client with a product they appreciate instead of complaining users with a free extension that they obviously do not appreciate. Sorry again for the rant. ALL 5/5/5/5