Maybe I am one of the few who has met Lonely in the flesh (albeit in Prague, rather than Pattaya) - but I found him a pleasant chap with a perfectly reasonable sense of humour and no particularly discernible "lump of grouchiness". Leave the poor guy alone!
And, by the way, for someone like me who, despite visiting LOS regularly for more than 20 years, still hasn't developed a taste for Thai food, Yupins does provide a cheap'n'cheerful - if bland - alternative.