The account in question has been closed now, but it submitted thousands of pull requests to random projects to advertise their build service.
Even if it was the best build service in the world, as a hacker I wouldn't personally use it.
That was also a troll/spam bot that had no affiliation to Travis CI. Their GitHub integration has always been classy.
The account in question has been closed now, but it submitted thousands of pull requests to random projects to advertise their build service.