"- no outbox anymore"
Nomad stated this was unimportant.
"- no user search anymore"
User search works for me: hltv.org/search?query=Jonty
"- no profile views amymore"
Well they didn't really matter... It's a number that people arbitrarily inflated to boost their own personal gains and egos. For me, this isn't a bigger issue.
"- what happened to hltv.pro?"
"HLTV.Pro" was an add-on to Chrome exempt from the vanilla HLTV. It was by BATISTTUA9 exclusively and featured many useful additions to HLTV. Unfortunately like all good things, it was hacked into and was forced to be shut down. The only thing you can install now is an add-on for HLTV Chat: chrome.google.com/webstore/detail/hltvch.. <-- Use at your own risk.
"- can't set profile picture anymore"
Profile pictures were a thing of the past and they were removed because, yet again, users abused the function horrendously.