I understand he wants some revenue for his work. But there are limits to how he should get it.
For all I know his site has been that way for a while. I was accessing it on a new computer that didn’t have AdBlock Plus enabled in the browser. With AdBlock Plus all the garbageware isn’t shown, and the setup file is right in the middle of the Downloads page ready to transfer.
But now I understand some of the postings here where, people say: I went to mp3tag and downloaded the program and it’s “Image Editor” or “Video Converter” or something, how do I tag my mp3s. The site with all the ads misdirects people.
He has popup ads that are obviously ads for things like Google Play or colleges, and is getting revenue from those. He doesn’t have to also host shady ads for software that are the first thing people see.
Big download buttons for toolbars or other iffy stuff is unethical. The page could say, please try some of this other software to support me, or it could put the other downloads at the bottom–not up at the top where they look like they’re what you came to the site for. Some of the garbage he links to looks pretty bad. I would never install a mystery toolbar.