Yeah, it's common these days, sadly.
I joined CombatACE back in 2011. Back then I was only 16 years old. It never dawned on me to create double accounts just to overcome the limitation of five free downloads per day. I downloaded hundreds of GBs worth of mods with patience and time, but I also began doing my part; to mod the game myself and share my new creations with the community that had already given so much.
These days it seems folks want things for free but, if something is not exactly how they'd like, they shit on that free stuff and on the creators providing such content, at times by even verbally abusing them (and I say this because I experienced it, more than once). Make the same people pay their hard-earned money on a heartless AAA game (the industry created tons over time) and they soon run to defend their purchase of mid, badly designed, commercial products.
I have no solution to this problem. Sometimes I despise humanity so much that I hope mass extinction happens at some point. Some other times I use that same anger and energy not to destroy or despise, but to create new content, in the hopes of entertaining and bringing smiles to people throughout the world, being through the hardships of life.
The above user is sadly annoyed by the fact he spent mere minutes to register on a website for free and to have to wait before stuff could be downloaded. Now imagine a modder, spending months on creating a terrain or a brand new aircraft 3d model with unparalleled level of research and attention to detail, and then sharing that creation for free without asking anything in return. Compared to the above case, should I be annoyed to never ever see just a thank you in return, actually with the risk of being verbally abused by some users? What I say applies to all modders of course, not just me.
I also reckon not all users are like that though, and fortunately. Sometimes the nasty ones make more noise than the good ones, a dense fog of noise that creates nothing and destroys everything. My apologies for the long post, I felt like venting though I rarely did in all these years in public.