Essence bots tend to get banned rather quickly. Doesn't help that your only quest is for essence. Normally a new player wouldn't just do one quest and go do rune essence. That being said if your using a proxy you'll be fine. If not then if that account gets banned/rolledbacked/or in trouble for macros then they'll watch your IP. I've even heard of some people having their mains banned after constant bans on other accounts on the same IP. Good luck
The problem is if you don't reply to one stupid person then he'll report you assuming that you're botting, there was a post on this previously that was pretty detailed, I'll try and find it for you, sec.
Wow that took a while, page 18 of my posts. http://runegear.net/Thread-Ban-rate-on-pure-ess
Depending on what bot he is using he could always use an auto talker script. A note to everyone being reported doesn't necessarily mean you'll get banned. Reports just have them focus or check out a player more.
I had a mate in the past who when he got bored he used to chat with miners, if they didn't reply to him and he saw them again later, he'd see them later and try and get a reply, if no reply he'd warn them that he was going to report him and then he would.
People get bored when mining essence and they look for things to fill time.