Pre-Season Fight has started, im using firefox with KHUT enemy disoriented+damage boost+brandon and its work perfectly.. I thought that after maintenance all hacks are not working, but its not! :)

charles works fine too, after updating xmls

Damage boost is only meant to be used in PVE not PVP. It causes refresh errors when in PVP. (Which is kinda the reason it says PVE only and PVE Agent boost  in visable range of the button  ;) 

Sorry, since you posted in the PVP thread, I assumed you meant in PVP :P

What browser are you using? And are you sure you are selecting the correct process for the browser if not using Chrome/Firefox? I know for Coowon etc 4 or 5 different processes pop up to select from. 

Despite this, I can confirm that damage boost is currently still working in both PVE and PVP. Enjoy it while you can, I say.

Depends on what you mean by "unsafe".

If you think you will get banned, then no you won't. It's safe.

If you mean unsafe in the sense that the enemy team can still kill you while disoriented? Then yes, they can. Counters, pre-emptive counters and join-in attacks are not affected by the disorient hack. Heroes like QS, Spider Noir, Union Jack, Emme Frost and others can still attack and kill your team even when disoriented, if you are unlucky.

The safest, easiest and fastest hack to use is the KHUT auto win. The battle never occurs, so no matter what team the opponent has they will lose 100% of the time. But be aware that if you never lose a battle and end a season with 100% wins and 0% losses on attack, people will report you. And yes, they check your stats.