Slushpool has added BIP148 voting option for its miners + the option to mine on BIP148 chain if and if there is a chain split after August 1.

They have 4.3% hashrate and I think this move would give more support to Segwit activated BIP148.

Guess Antpool would never be able to grasp the philosophical notion of pool neutrality.

https://slushpool.com/news/new-voting-option-bip148-has-been-deployed-feel-free-to-vote/

Update: Slushpool mines first BIP148 block, https://www.blocktrail.com/BTC/block/000000000000000000f288b3ff879d0ef11d3197f88dcdc1e29c3933b9c0e5af