Well, it is definitely true that BGG UI feels dated and disjointed, and if Board Game Atlas triggered some reaction on BGG side then great. I don't find BGA UI that much better. Cleaner, more 'modern' - yeah... which includes a lots of white space and rather low information density. On BGG I visit some forums, read reviews for games I'm interested in and browse the files section - even if UI could be improved here it is usable enough and the volume of information makes up for all the deficiencies, at least for me. And contrary to Goodreads BGG seems to have working search ;-)