It's funny to watch how some of the 'black hat SEOs' post garbage links to attacked sites in a 'methodical' way. They THINK the links won't be found if they post them only for a couple of days or if they try to hide them. Not to worry, your networks of garbage domains are methodically listed one by one in a .txt file and sent directly to Mr. Matt Cutts every day for bitc*-slapping :lol:
Here are examples of negative SEO attack that may affect... this site. The Russians/Ukrainians (they could be paid by 3rd parties) link to this site from their spam websites. Note how they use some common keywords (like 'this', 'download', 'here', 'click') hoping the links won't be found ;). At the same time they know what's coming and some of them have already listed their garbage domains for sale :lol: Hint to them - your domains are already bi*ch-slapped by Google so they are worthless until they expire and you - if lucky - register them again ;).
I doubt EssayScam can be easily affected because: 1) the owners must be aware of the attack and - if they smart - are proactive, 2) the site is established enough not to be easily affected. I still will be watching backlinks related to this site (and other sites related to online writing services) because the attackers share the same domains. My list already has almost 8,000 domains and this info is being shared with Google as we speak ;).
Example 1:

Example 2:
After having spent over a month on disavowing crappy links and writing comments that my client's website is not responsible for them (because they are not), I hope soon, very soon Google and Bing will come up with the following press release:-----------------------------------
Today we have finished a serious cleanup job on Ukrainian, Russian, and Chinese network of websites that engaged in negative SEO attacks. We're calling it - the network of 450K domains owned by the "black hat SEOs" are now worthless.
However, we would like to give a benefit of doubt to the affected webmasters. If your domain is on the WORTHLESS DOMAINS list and you have ever published a dofollow link to another website in order to negatively affect its rankings, here are the steps you must follow to uncr@p your domains:
1. Login to your Webmaster Tools account and click on the "Uncr@p My Worthless Domains" link.
2. For each domain, compose an original, 1,200-word essay written in flawless English, explaining why you have thought it was a good idea to waste time and resources of other webmasters, businesses, and our employees. If you have received a monetary compensation for your unethical actions, explain in detail why this money should be donated for better causes.
3. Write a 900-word letter to your future employer describing how your time could have been spent better on doing good deeds or more productive things.
4. Write and email a 300-word apology letter to all the people who have been negatively affected by your actions. Don't forget to create a spreadsheet and list the dates, email addresses, and screenshots of the emails sent.
5. Wait until you receive a reply from the affected people. If your letter has been ignored or if a reply has a "F!*K YOU!" theme, continue your efforts until you are successful and forgiven.
We will reconsider uncr@ping your worthless domains within 365-980 days from submitting the form. Please note that only forgiven webmasters may be given a second chance.
[x] I, [ ], once again apologize to everyone impacted by my stupid actions. I agree not to sabotage other websites in the future.
SUBMIT
Here is an example of a page where the negative SEO scammers publish spam links to their own websites (they may rotate links between their own websites and their competition websites they target):
wowwebnow .com/services.php
<a href="http:/ writing beee .com/" target="_blank">writing bee</a> . <a href="http:/ essays writing online .co.uk/" target="_blank">essay writing</a> . <a href="http:/ essay service writing .com/" target="_blank"> essay writing service reviews </a> . <a href="http:/ master papers reviews .com/" target="_blank">http:/ masterpapers .com/</a> . <a href="http:/ get essay writing service .co.uk/" target="_blank">essay writer </a>
They have also started linking to their Facebook / Twitter pages (not to their main pages) hoping to get away with severe penalties for their fraudulent SEO actions against their competition. They think that by not linking directly to their parent websites nobody will notice who they are and what they do.