Voat gets shilled every day, and I'll post a summary of the most common shills and ways to spot them. The quickest way to identify a shill is to hover over the username. Their account age, post score and comment score will come up.
Account age and score
Very new accounts and 1.3-1.4 year old accounts are at higher risk of being shills than other accounts. Why? As a shill accrues negative post scores, they ditch their old account to make a new account for renewed credibility. This rule doesn't work right now due to the Reddit refugee wave, but usually this is the prime way to spot shills. Also, some company made a whole of accounts 1.4 years ago with the purpose of using them for shilling/selling them later, so a lot of shills are 1.4 years old. This is not a surefire method: There have been reports of high profile users with high credibility and comment scores in the 10000 range being contacted to sell their account to the shill companies. So if you see a very old high score account posting questionable comments, you have to look at their comment history to see if there was a sudden change.
The white nationalist hyperbole
YES!FUCK NIGGERSKILLALL SHIT STAINS AMERICA FOR WHITES!
Example from today. Here, the shill uses extreme language and pretends to be a National Socialist (Nazi). This is to make Voat and National Socialists look bad and to scare new users away. Actual National Socialists (like myself) would never talk like this. We do use these slurs, but not in this kind of way or without context.
The concern troll
Pretends to be 'one of us' and then proceeds to demoralize by sowing concern and doubt. Example:
"Yeah guys, I'm really happy Trump got elected, but I'm not sure he can even build a wall. He's part of the elite too, you know. What if he's just a pawn? Sigh" It can be hard to differentiate between concern trolls and legitimately concerned users, but concern trolls will use more emotional language while somebody who's actually legitimately concerned will usually have some arguments.
The blogger archetype will post a lot of WORDS in a very typical kind of way using capitalization and a lot of links to propaganda sites.
They aways use the same talking points. Very common for CTR shills posting. No legitimate voat user TALKS like this. I think it's because CTR hires a lot of women, I don't think a male would write in this kind of way.
The divide & Conquer shill
The D&C shill is very common. The goal of this shill is to halt rational discussion and split open the community by increasing tensions and decreasing trust. For example, they might buy a legimate voat account that's a couple years old with a high score, and use it to post comments like: "Fuck off back to reddit, we don't need your kind here." Then they might reply with another shill account to the tunes off: "Oh, I see what kind of community this is. Leaving Reddit was a mistake, this place is worse". This is to decrease cohesion. Instead of all of us being in it together, it's newly arrived vs old guard. Other common D&C topics include religion vs atheism, racial D&C ("Italians aren't white") and partisan D&C ("Get the fuck out of here you filthy socialist, only conservatives are allowed here.").
I hope this guide helps you spot some shills. There's far more shills than that, but these are what you'll encounter 90% of the time. If you want to find out more about shills you can visit the Chans, which are very immune to shills and will immediately call them out if they see them. Also, don't mistake somebody having a different opinion with being a shill. Check their other posts first if you aren't sure.