I applied to a job as a Product Marketing Manager, had a phone interview with the recruiter and an onsite interview with the hiring manager and recruiter. After a 2h+ interview I was told I'd hear back within a month. 4 months later I still didn't hear anything though I followed up with the recruiter twice. I don't have problems with being rejected but not hearing a word after you put in at least 6 hours of your time (completing an application, preparing for the interview and 3h of interviews in total) is just disrespectful.