Ok your logic is flawed -
1 - If a pop up comes up, you have an extra task aswell as running away.
2 - The group pop up does stop your character from running
3 - He's also trade bugging people so that he can prevent them from running away
4 - YOUR STICKING UP FOR A GLITCHING / EXPLOITER, what's wrong with you?
If you actually took a moment to answer the questions rather than circling back round to shouting "Exploit! Exploit! Exploit!" then you might actually provide some information to be looked into.
Knowing these files are completely custom, originally if you are already grouped with other players, then any invite towards you or any player you are grouped with, will simply not appear, or popup or succeed in grouping you.
So are you grouped with your friends, at the time of this distracting pop up? Or are you simply running about, ungrouped?
If running around ungrouped, then this function is intentional and you should simply turn off your grouping ability.
If you are grouped during this, then obviously something is wrong.
Just to be clear....i don't care if you think they're exploiting or whether you think i'm sticking up for people abusing an intended system or whatever....just answer the question and which scenario you were in.
As for the trading one, don't people have to be face to face? If you're that bad at allowing someone to abuse a trade window, then you deserve to lose lol.