In ECW One Night Stand 2005, they were having a Raw vs. ECW angle.
Fans in that bingo hall booed the hell out of the WWE wrestlers, except the ones who previously wrestled in ECW like Chris Jericho. Then you have Austin come out acting like he was a part of the ECW originals. I do know around that same time Austin made a short-lived comeback (i.e. stunning the entire McMahon family) but his role in the event just came out of nowhere. But I would say him having a beer with Sandman was like saying thanks.
Re: Why was Austin cheered in ECW One Night Stand?
Austin was in ECW, was friends with Heyman and the locker room, plus the Stone Cold character is hard to hate especially for a smarky crowd that were teens or kids in the 90's
^that badass roster^
"Every single thing you're doing right now in the wwe john , going to every show , The Rock has already done it . Every single thing you're thinking about doing , outside of the wwe , The Rock has already done it , as a matter of fact The Rock has done it better !"