Same but have seen plenty of people talk about it. I've always had some type of pleco in my tank and never had slime sucking problem but they did eat algae off my turtles in my old pond.I’ve never had a problem with aggression from any algae eating fish. I keep plecos with silver dollars and bichirs, and I’ve kept CAE with other small fish. Never seen either of them sucking on any fish. I do supplement veggies though.
But I’ve heard complaints that they suck on other fish or chase them around.