Maybe it has been a while that we have seen bitsler in terms of sig campaign in the forum but they are active in other social media ads. And are they really deleting old accounts? I only know that you need to update your password if you have not accessed their site for so long. I don't know that they are deleting inactive accounts though. And I noticed, bitsler is one of the bookies with long list when it comes to e-sports. So for e-sports fanatics, this site is one good option to look at when it comes to odds.
That doesn't matter to people here. Not everyone who uses bitcointalk uses social media, or not everyone who uses bitcointalk and social media also follows bitsler. Which means that they need to do some marketing here as well. What is the best type of marketing here? Doing signature campaigns because that way you are basically seen everywhere.
I know a few places that started only due to the fact that they did a marketing campaign here and I saw their names in signatures of posts. This is why I doubt that it would be a bad idea if they restarted doing that. It may cost a bit, but it would usually worth the cost, hence why there are so many places doing it.