This comes up all the time and the old schoolers will always defend it's 'clean' looks. There's no reason why they can't allow small custom avatars as it helps identify users. On other forums I recognize regulars but hardly know any here despite using it all the time.
Lack of Tapatalk support is disgraceful for an IT forum and they should really update.
I like clean looking, easy to read forums which this achieves, but at the expense of basic functionality and customization.