RealPlayer has a bad reputation no question. I don't like the new program much with the cloud, but I used it up until about v11. v12-15 was OK and not much different. O/C the browser is not secure. Also, there are too many processes with the helper and messaging programs, and it all runs on boot, so that has been the biggest problem. It's disruptive on a system imo. RP has always been that way.
I haven't ever seen concrete facts that prove that there is data stealing malicious spyware in RealPlayer. Maybe it is there. Mostly, I think complaints about the program are about the processes and that RP gets and uses some data. They probably do or have in the past. Companies shouldn't operate in the dark when it comes to data.
With the comparison between RP and Netscape, I am referring to the brand rather than the product. Netscape could be a good brand. I think RealPlayer is/could be one too, but it seems they haven't ever been able to get started to really make the most out of the possibilities. Otherwise, they have managed to keep the brand alive, which Netscape couldn't achieve.
I just looked at the most recent income numbers I could find for Real Network, the owner of RealPlayer. The company is selling stock and brought in $125,000,000 of revenue in 2015. However, the company suffered an operational loss, and revenue has been going down over the years.
Maybe if Real Network takes the time to listen to security professionals, they will be able to really make a success of RealPlayer. Actually, whoever owns Netscape might not have a bad idea to make a deal with RealPlayer to provide a secure browser for the program. Maybe a cloud services deal to take on Google would bring some success. Netscape Docs for offices and RP/Netscape for at home. Thinking while I type again.