I don't know about influence claimed by Leongsam, but we can certainly tell how his funny mind works.
Critique on PAP - only 2304 words including a long intro
Critique on WP - 3487 words
Nearly longer than PAP + SDP add together and comes in just a super-short 4 days after the PAP critique
Critique on SDP - only 2049 words
Less words but comes 4 + 4 = 44 days after WP critique. Probably forced himself to write in order not to look bad.
Critique on NSP - Probably around 3000 words since he has no nice long words for the parties he joined (and ostracized him?)
8 days and still counting. After a few days ago he claimed he started writing, one wonders why a subject lacking in depth needs so many days.