That's so sad... I hate these dogs but what I hate more are the people who care more about the dog than about the people. I think the thing we as a society can do is to kill the dogs ourselves not matter how bad this sounds. After all, people are more important than animals.
The real problem is that people responsible for this are interested in not solving the problem. They get a lot of money for their "work" and if finally the problem is resolved (which can only be done by killing the dogs) they will stop receiving this money. I'm talking about millions here, I don't recall the exact number but it is impressive.
And of course, the Mayor of Sofia is incompetent and so far has done nothing to really improve the life in Sofia.
Sorry for sounding that negative but this is a very sensitive topic for me as I am really afraid of dogs and it's a torture for me every time I have to go home. I was thinking of killing them myself as the authorities did nothing no matter how much I called them, but I'm too scared to approach the dogs. It may sound cruel but I'd rather prefer cruel people killing dogs to wild dogs hurting or even scaring anyone. After all, people are more important than any animal.