Speakers and record Storage dilemma

Embarrassing question but I have to ask...

I have a LPBin.com record storage bin and I like it. It’s full so while I’m considering another I can’t help wonder if I’d be better served going back to the ubiquitous IKEA shelves. If I went IKEA I’d have to place them on either side of my media bench and put the speakers (currently stand mounts) in front of them.

opinions seem split on whether the record shelves (full of records) would act as a diffuser or just act as a solid wall. Are there any other potential implications in terms of sound quality?

If I go for another LPBin then it goes next to the other one at the far end of the living room next to the dining room. I’ll be apartment bound probably for the rest of my life so furniture decisions have to be planned for both the current and future living spaces.

thanks